| haematopoietic | (adjective) pertaining to the formation of blood or blood cells | Synonyms: haematogenic, haemopoietic, hematogenic, hematopoietic, hemopoietic |
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| haematuria | (noun) the presence of blood in the urine; often a symptom of urinary tract disease | Synonyms: hematuria |
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| haemic | (adjective) relating to or containing or affecting blood | Synonyms: haematic, hematic, hemic |
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| haemitin | (noun) a complex red organic pigment containing iron and other atoms to which oxygen binds | Synonyms: haem, hematin, heme, protoheme |
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| haemodialysis | (noun) dialysis of the blood to remove toxic substances or metabolic wastes from the bloodstream; used in the case of kidney failure | Synonyms: hemodialysis |
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| haemogenesis | (noun) the formation of blood cells in the living body (especially in the bone marrow) | Synonyms: haematogenesis, haematopoiesis, haemopoiesis, hematogenesis, hematopoiesis, hemogenesis, hemopoiesis, sanguification |
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| haemoglobin | (noun) a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues | Synonyms: Hb, hemoglobin |
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| haemoglobinemia | (noun) presence of excessive hemoglobin in the blood plasma | Synonyms: hemoglobinemia |
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| haemoglobinopathy | (noun) a blood disease characterized by the presence of abnormal hemoglobins in the blood | Synonyms: hemoglobinopathy |
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| haemoglobinuria | (noun) presence of hemoglobin in the urine | Synonyms: hemoglobinuria |
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| haemolysin | (noun) any substance that can cause lysis (destruction) of erythrocytes (red blood cells) and the release of their hemoglobin | Synonyms: erythrocytolysin, erythrolysin, hemolysin |
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| haemolysis | (noun) lysis of erythrocytes with the release of hemoglobin | Synonyms: haematolysis, hematolysis, hemolysis |
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| haemolytic | (adjective) relating to or involving or causing hemolysis | Synonyms: hemolytic |
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| haemophile | (noun) someone who has hemophilia and is subject to uncontrollable bleeding | Synonyms: bleeder, haemophiliac, hemophile, hemophiliac |
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| haemophilia | (noun) congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son | Synonyms: bleeder's disease, hemophilia |
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| haemophiliac | (noun) someone who has hemophilia and is subject to uncontrollable bleeding | Synonyms: bleeder, haemophile, hemophile, hemophiliac |
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| haemophilic | (adjective) relating to or having hemophilia | Synonyms: hemophilic |
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| haemopoiesis | (noun) the formation of blood cells in the living body (especially in the bone marrow) | Synonyms: haematogenesis, haematopoiesis, haemogenesis, hematogenesis, hematopoiesis, hemogenesis, hemopoiesis, sanguification |
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| haemopoietic | (adjective) pertaining to the formation of blood or blood cells | Synonyms: haematogenic, haematopoietic, hematogenic, hematopoietic, hemopoietic |
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| haemoproteid | (noun) related to malaria parasite and having a phase in the viscera of various birds | - |
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| haemoprotein | (noun) a conjugated protein linked to a compound of iron and porphyrin | Synonyms: hemoprotein |
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| haemoptysis | (noun) coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs | Synonyms: hemoptysis |
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| haemorrhage | (noun) the flow of blood from a ruptured blood vessel | Synonyms: bleeding, hemorrhage |
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| haemorrhagic | (adjective) of or relating to a hemorrhage | Synonyms: hemorrhagic |
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| haemorrhoid | (noun) venous swelling external or internal to the anal sphincter | Synonyms: hemorrhoid, piles |
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| haemorrhoidectomy | (noun) surgical procedure for tying hemorrhoids and excising them | Synonyms: hemorrhoidectomy |
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| haemosiderin | (noun) a granular brown substance composed of ferric oxide; left from the breakdown of hemoglobin; can be a sign of disturbed iron metabolism | Synonyms: hemosiderin |
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| haemosiderosis | (noun) abnormal deposit of hemosiderin; often a symptom of thalassemia or hemochromatosis | Synonyms: hemosiderosis |
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| haemosporidian | (noun) minute protozoans parasitic at some stage of the life cycle in blood cells of vertebrates including many pathogens | - |
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| haemostasia | (noun) surgical procedure of stopping the flow of blood (as with a hemostat) | Synonyms: haemostasis, hemostasia, hemostasis |
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| haemostasis | (noun) surgical procedure of stopping the flow of blood (as with a hemostat) | Synonyms: haemostasia, hemostasia, hemostasis |
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| haemostat | (noun) a surgical instrument that stops bleeding by clamping the blood vessel | Synonyms: hemostat |
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| haemothorax | (noun) accumulation of blood in the pleural cavity (the space between the lungs and the walls of the chest) | Synonyms: hemothorax |
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| hyaena | (noun) doglike nocturnal mammal of Africa and southern Asia that feeds chiefly on carrion | Synonyms: hyena |
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| hypaethral | (adjective) partly or entirely open to the sky | Synonyms: hypethral |
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| hyperaemia | (noun) increased blood in an organ or other body part | Synonyms: hyperemia |
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| hypercalcaemia | (noun) the presence of abnormally high levels of calcium in the blood; usually the result of excessive bone resorption in hyperparathyroidism or Paget's disease | Synonyms: hypercalcemia |
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| hyperglycaemia | (noun) abnormally high blood sugar usually associated with diabetes | Synonyms: hyperglycemia |
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| hyperlipaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| hyperlipidaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| hyperlipoidaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| hypervolaemia | (noun) a blood disorder consisting of an increase in the volume of circulating blood | Synonyms: hypervolemia |
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| hypocalcaemia | (noun) abnormally low level of calcium in the blood; associated with hypoparathyroidism or kidney malfunction or vitamin D deficiency | Synonyms: hypocalcemia |
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| hypoglycaemia | (noun) abnormally low blood sugar usually resulting from excessive insulin or a poor diet | Synonyms: hypoglycemia |
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| hypoglycaemic | (adjective) of or relating to hypoglycemia | Synonyms: hypoglycemic |
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| hypovolaemia | (noun) a blood disorder consisting of a decrease in the volume of circulating blood | Synonyms: hypovolemia |
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| hypovolaemic | (adjective) of or relating to a decrease in the volume of circulating blood | Synonyms: hypovolemic |
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| inaesthetic | (adjective) violating aesthetic canons or requirements; deficient in tastefulness or beauty | Synonyms: unaesthetic |
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| ischaemia | (noun) local anemia in a given body part sometimes resulting from vasoconstriction or thrombosis or embolism | Synonyms: ischemia |
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| ischaemic | (adjective) relating to or affected by ischemia | Synonyms: ischemic |
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| jaeger | (noun) rapacious seabird that pursues weaker birds to make them drop their prey | - |
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| kafkaesque | (adjective) characterized by surreal distortion and a sense of impending danger | - |
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| kinaesthesia | (noun) the perception of body position and movement and muscular tensions etc | Synonyms: feeling of movement, kinesthesia |
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| (noun) the ability to feel movements of the limbs and body | Synonyms: kinaesthesis, kinesthesia, kinesthesis, kinesthetics, muscle sense, sense of movement |
| kinaesthesis | (noun) the ability to feel movements of the limbs and body | Synonyms: kinaesthesia, kinesthesia, kinesthesis, kinesthetics, muscle sense, sense of movement |
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| kinaesthetic | (adjective) of or relating to kinesthesis | Synonyms: kinesthetic |
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| kinaesthetically | (adverb) in a kinesthetic manner; by means of kinesthesia | Synonyms: kinesthetically |
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| laelia | (noun) any of various spectacular plants of the genus Laelia having showy flowers in many colors | - |
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| laetrile | (noun) a substance derived from amygdalin; publicized as an antineoplastic drug although there is no supporting evidence | - |
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| laevulose | (noun) a simple sugar found in honey and in many ripe fruits | Synonyms: fructose, fruit sugar, levulose |
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| leucaemia | (noun) malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer | Synonyms: cancer of the blood, leukaemia, leukemia |
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| leukaemia | (noun) malignant neoplasm of blood-forming tissues; characterized by abnormal proliferation of leukocytes; one of the four major types of cancer | Synonyms: cancer of the blood, leucaemia, leukemia |
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| lignosae | (noun) a category in some early taxonomies | - |
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| lipaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| lipidaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidemia, lipoidaemia, lipoidemia |
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| lipoidaemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidemia |
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| lycaenid | (noun) any of various butterflies of the family Lycaenidae | Synonyms: lycaenid butterfly |
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| lygaeid | (noun) a true bug: usually bright-colored; pest of cultivated crops and some fruit trees | Synonyms: lygaeid bug |
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| maelstrom | (noun) a powerful circular current of water (usually the result of conflicting tides) | Synonyms: vortex, whirlpool |
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| maenad | (noun) (Greek mythology) a woman participant in the orgiastic rites of Dionysus | - |
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| (noun) an unnaturally frenzied or distraught woman | - |
| maestro | (noun) an artist of consummate skill | Synonyms: master |
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| mediaeval | (adjective) relating to or belonging to the Middle Ages | Synonyms: medieval |
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| (adjective) as if belonging to the Middle Ages; old-fashioned and unenlightened | Synonyms: gothic, medieval |
| (adjective) characteristic of the time of chivalry and knighthood in the Middle Ages | Synonyms: chivalric, knightly, medieval |
| melaena | (noun) abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding) | Synonyms: melena |
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| oligochaete | (noun) hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body | Synonyms: oligochaete worm |
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| orthopaedic | (adjective) of or relating to orthopedics | Synonyms: orthopedic, orthopedical |
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| orthopaedics | (noun) the branch of medical science concerned with disorders or deformities of the spine and joints | Synonyms: orthopedics |
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| orthopaedist | (noun) a specialist in correcting deformities of the skeletal system (especially in children) | Synonyms: orthopedist |
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| oxyhaemoglobin | (noun) the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs | Synonyms: oxyhemoglobin |
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| ozaena | (noun) a chronic disease of the nose characterized by a foul-smelling nasal discharge and atrophy of nasal structures | Synonyms: ozena |
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| paean | (noun) a formal expression of praise | Synonyms: encomium, eulogy, panegyric, pean |
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| (noun) (ancient Greece) a hymn of praise (especially one sung in ancient Greece to invoke or thank a deity) | Synonyms: pean |
| paederast | (noun) a man who has sex (usually sodomy) with a boy as the passive partner | Synonyms: child molester, pederast |
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| paederastic | (adjective) of homosexuality between a man and a boy | Synonyms: pederastic |
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| paederasty | (noun) sexual relations between a man and a boy (usually anal intercourse with the boy as a passive partner) | Synonyms: pederasty |
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| paediatric | (adjective) of or relating to the medical care of children | Synonyms: pediatric |
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| paediatrician | (noun) a specialist in the care of babies | Synonyms: baby doctor, pediatrician, pediatrist |
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| paediatrics | (noun) the branch of medicine concerned with the treatment of infants and children | Synonyms: pediatric medicine, pediatrics, pedology |
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| paedophile | (noun) an adult who is sexually attracted to children | Synonyms: pedophile |
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| paedophilia | (noun) a sexual attraction to children | Synonyms: pedophilia |
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| paella | (noun) saffron-flavored dish made of rice with shellfish and chicken | - |
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| paeony | (noun) any of numerous plants widely cultivated for their showy single or double red or pink or white flowers | Synonyms: peony |
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| palaeencephalon | (noun) the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex | Synonyms: paleencephalon, paleoencephalon |
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| palaeoanthropology | (noun) the scientific study of human fossils | Synonyms: human palaeontology, human paleontology, paleoanthropology |
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| palaeobiology | (noun) a branch of paleontology that deals with the origin and growth and structure of fossil animals and plants as living organisms | Synonyms: paleobiology |
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| palaeobotany | (noun) the study of fossil plants | Synonyms: paleobotany |
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| palaeoclimatology | (noun) the study of the climate of past ages | Synonyms: paleoclimatology |
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| palaeodendrology | (noun) the branch of paleobotany that studies fossil trees | Synonyms: paleodendrology |
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| palaeoecology | (noun) the branch of ecology that studies ancient ecology | Synonyms: paleoecology |
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| palaeoethnography | (noun) the ethnography of paleolithic humans | Synonyms: paleoethnography |
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| palaeogeography | (noun) the study of the geography of ancient times or ancient epochs | Synonyms: paleogeography |
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| palaeogeology | (noun) the study of geologic features once at the surface of the earth but now buried beneath rocks | Synonyms: paleogeology |
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| palaeolithic | (adjective) of or relating to the second period of the Stone Age (following the eolithic) | Synonyms: paleolithic |
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