| acanthocephalan | (noun) any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines | Synonyms: spiny-headed worm |
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| acephalia | (noun) absence of the head (as in the development of some monsters) | Synonyms: acephalism, acephaly |
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| acephalism | (noun) absence of the head (as in the development of some monsters) | Synonyms: acephalia, acephaly |
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| acephaly | (noun) absence of the head (as in the development of some monsters) | Synonyms: acephalia, acephalism |
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| acrocephaly | (noun) a congenital abnormality of the skull; the top of the skull assumes a cone shape | Synonyms: oxycephaly |
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| acromphalus | (noun) abnormal protrusion of the navel; sometimes the start of umbilical hernia | - |
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| amorphophallus | (noun) any plant of the genus Amorphophallus | - |
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| anencephalia | (noun) a defect in brain development resulting in small or missing brain hemispheres | Synonyms: anencephaly |
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| anencephaly | (noun) a defect in brain development resulting in small or missing brain hemispheres | Synonyms: anencephalia |
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| apocryphalness | (noun) The property of being of doubtful authenticity, of lacking authority, or of not being regarded as canonical. | - |
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| (noun) The property of being of dubious veracity; of questionable accuracy or truthfulness. | - |
| asphalt | (noun) a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons | Synonyms: mineral pitch |
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| (noun) mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing | - |
| brachycephalic | (noun) an adult with a short broad head | - |
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| brachycephalism | (noun) the quality of being brachycephalic | Synonyms: brachycephaly |
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| brachycephaly | (noun) the quality of being brachycephalic | Synonyms: brachycephalism |
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| cephalalgia | (noun) pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs | Synonyms: head ache, headache |
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| cephalaspid | (noun) extinct jawless fish of the Devonian with armored head | Synonyms: osteostracan |
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| cephalexin | (noun) a cephalosporin antibiotic (trade names Keflex and Keflin and Keftab) commonly prescribed for mild to moderately severe infections of the skin or ears or throat or lungs or urinary tract | Synonyms: Keflex, Keflin, Keftab |
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| cephalhematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalohematoma |
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| cephalitis | (noun) inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | Synonyms: encephalitis, phrenitis |
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| cephalochordate | (noun) fish-like animals having a notochord rather than a true spinal column | - |
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| cephaloglycin | (noun) antibiotic related to cephalosporin but no longer in common use | Synonyms: Kafocin |
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| cephalohematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalhematoma |
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| cephalometry | (noun) measurement of human heads | - |
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| cephalopod | (noun) marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles | Synonyms: cephalopod mollusk |
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| cephaloridine | (noun) a broad spectrum semisynthetic antibiotic produced by modifying cephalosporin | - |
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| cephalosporin | (noun) one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity | Synonyms: Mefoxin |
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| cephalothin | (noun) a semisynthetic analogue of cephalosporin | - |
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| clinocephalism | (noun) a congenital defect in which the top of the head is depressed (concave instead of convex) | Synonyms: clinocephaly |
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| clinocephaly | (noun) a congenital defect in which the top of the head is depressed (concave instead of convex) | Synonyms: clinocephalism |
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| diencephalon | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: betweenbrain, interbrain, thalmencephalon |
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| dolichocephalic | (noun) an adult with a long narrow head | - |
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| dolichocephalism | (noun) the quality of being dolichocephalic | Synonyms: dolichocephaly |
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| dolichocephaly | (noun) the quality of being dolichocephalic | Synonyms: dolichocephalism |
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| echoencephalogram | (noun) a graphical image of the brain produced by an echoencephalograph | - |
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| echoencephalograph | (noun) a sonograph that creates an image of the brain and its abnormalities | - |
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| echoencephalography | (noun) a noninvasive diagnostic procedure that uses ultrasound to study the anatomy of the brain | - |
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| electroencephalogram | (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, encephalogram |
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| electroencephalograph | (noun) medical instrument that records electric currents generated by the brain | - |
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| encephalartos | (noun) any of numerous cycads of the genus Encephalartos having stout cylindrical trunks and a terminal crown of long often spiny pinnate leaves | - |
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| encephalitis | (noun) inflammation of the brain usually caused by a virus; symptoms include headache and neck pain and drowsiness and nausea and fever (`phrenitis' is no longer in scientific use) | Synonyms: cephalitis, phrenitis |
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| encephalocele | (noun) protrusion of brain tissue through a congenital fissure in the skull | - |
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| encephalogram | (noun) an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast | Synonyms: pneumoencephalogram |
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| (noun) a graphical record of electrical activity of the brain; produced by an electroencephalograph | Synonyms: EEG, electroencephalogram |
| encephalograph | (noun) Any apparatus used to produce an encephalogram by recording electric currents generated by the brain. | - |
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| encephalography | (noun) roentgenography of the brain after spinal fluid has been replaced by a gas (usually oxygen); produces an encephalogram | - |
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| encephalomeningitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: cerebromeningitis, meningoencephalitis |
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| encephalomyelitis | (noun) inflammation of the brain and spinal cord | - |
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| encephalon | (noun) that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord | Synonyms: brain |
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| encephalopathy | (noun) any disorder or disease of the brain | Synonyms: brain disease, brain disorder |
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| enkephalin | (noun) an endorphin having opiate qualities that occurs in the brain and spinal cord and elsewhere | - |
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| exomphalos | (noun) an umbilical hernia at birth in which some abdominal organs push into the umbilical cord | - |
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| holocephalan | (noun) fish with high compressed head and a body tapering off into a long tail | Synonyms: holocephalian |
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| holocephalian | (noun) fish with high compressed head and a body tapering off into a long tail | Synonyms: holocephalan |
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| hydrocephalus | (noun) an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological | Synonyms: hydrocephaly |
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| hydrocephaly | (noun) an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological | Synonyms: hydrocephalus |
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| leptocephalus | (noun) slender transparent larva of eels and certain fishes | - |
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| leukoencephalitis | (noun) inflammation of the white matter of the brain | - |
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| macrencephaly | (noun) an abnormally large braincase | - |
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| macrocephaly | (noun) an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical | Synonyms: megacephaly, megalocephaly |
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| marginocephalian | (noun) includes boneheaded (pachycephalosaurs) and horned (ceratopsian) dinosaurs | Synonyms: Marginocephalia, suborder Marginocephalia |
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| megacephaly | (noun) an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical | Synonyms: macrocephaly, megalocephaly |
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| megalocephaly | (noun) an abnormally large head; differs from hydrocephalus because there is no increased intracranial pressure and the overgrowth is symmetrical | Synonyms: macrocephaly, megacephaly |
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| melphalan | (noun) antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies | Synonyms: Alkeran |
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| meningoencephalitis | (noun) inflammation of the brain and spinal cord and their meninges | Synonyms: cerebromeningitis, encephalomeningitis |
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| mesencephalon | (noun) the middle portion of the brain | Synonyms: midbrain |
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| metencephalon | (noun) the part of the hindbrain that develops into the pons and the cerebellum | - |
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| microcephalus | (noun) an abnormally small head and underdeveloped brain | Synonyms: microcephaly, nanocephaly |
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| microcephaly | (noun) an abnormally small head and underdeveloped brain | Synonyms: microcephalus, nanocephaly |
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| microphallus | (noun) an abnormally small penis | Synonyms: micropenis |
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| morphallaxis | (noun) regeneration on a reduced scale of a body part; observed especially in invertebrates such as certain lobsters | - |
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| myelencephalon | (noun) the posterior part of the hindbrain in developing vertebrates; forms the medulla oblongata in adults | - |
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| nanocephaly | (noun) an abnormally small head and underdeveloped brain | Synonyms: microcephalus, microcephaly |
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| neencephalon | (noun) the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts | Synonyms: neoencephalon |
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| neoencephalon | (noun) the part of the brain having the most recent phylogenetic origin; the cerebral cortex and related parts | Synonyms: neencephalon |
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| nymphalid | (noun) medium to large butterflies found worldwide typically having brightly colored wings and much-reduced nonfunctional forelegs carried folded on the breast | Synonyms: brush-footed butterfly, four-footed butterfly, nymphalid butterfly |
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| omphalocele | (noun) protrusion of the intestine and omentum through a hernia in the abdominal wall near the navel; usually self correcting after birth | Synonyms: umbilical hernia |
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| omphalos | (noun) a scar where the umbilical cord was attached | Synonyms: belly button, bellybutton, navel, omphalus, umbilicus |
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| omphaloskepsis | (noun) literally, the contemplation of one's navel, which is an idiom usually meaning complacent self-absorption | Synonyms: navel-gazing |
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| omphalus | (noun) a scar where the umbilical cord was attached | Synonyms: belly button, bellybutton, navel, omphalos, umbilicus |
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| oxycephaly | (noun) a congenital abnormality of the skull; the top of the skull assumes a cone shape | Synonyms: acrocephaly |
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| pachycephalosaur | (noun) bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found | Synonyms: pachycephalosaurus |
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| pachycephalosaurus | (noun) bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found | Synonyms: pachycephalosaur |
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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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| paleencephalon | (noun) the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex | Synonyms: palaeencephalon, paleoencephalon |
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| paleoencephalon | (noun) the more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex | Synonyms: palaeencephalon, paleencephalon |
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| panencephalitis | (noun) diffuse inflammation of the entire brain | - |
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| phalacrosis | (noun) the condition of having no hair on the top of the head | Synonyms: baldness |
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| phalanger | (noun) small furry Australian arboreal marsupials having long usually prehensile tails | Synonyms: opossum, possum |
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| phalangist | (noun) a Spanish member of General Franco's political party | Synonyms: falangist |
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| phalangitis | (noun) inflammation of a finger or toe | - |
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| phalanx | (noun) any of the bones of the fingers or toes | - |
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| (noun) a body of troops in close array | - |
| (noun) any closely ranked crowd of people | - |
| phalarope | (noun) small sandpiper-like shorebird having lobate toes and being good swimmers; breed in the Arctic and winter in the tropics | - |
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| phalloidin | (noun) one of a group of toxins from the death cap (Amanita phalloides) known as phallotoxins. | - |
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| phalloplasty | (noun) reconstructive surgery on the penis to repair congenital abnormality or injury | - |
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| phallus | (noun) the male sex organ | Synonyms: member, penis |
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| phalsa | (noun) drought-resistant Asiatic treelike shrub bearing pleasantly acid small red edible fruits commonly used in sherbets | Synonyms: Grewia asiatica |
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| plagiocephaly | (noun) congenital malformation of the skull in which the main axis of the skull is oblique | - |
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| pneumoencephalogram | (noun) an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast | Synonyms: encephalogram |
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| prosencephalon | (noun) the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube | Synonyms: forebrain |
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| rhinencephalon | (noun) a center in the cerebral hemispheres that governs the sense of smell in lower animals; in humans it seems to mediate complex emotional behavior | Synonyms: olfactory brain |
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| rhombencephalon | (noun) the posterior portion of the brain including cerebellum and brainstem | Synonyms: hindbrain |
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