| accroides | (noun) an alcohol-soluble resin from Australian trees; used in varnishes and in manufacturing paper | Synonyms: acaroid resin, accaroid resin, accroides gum, accroides resin, gum accroides |
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| actinoid | (noun) any of a series of radioactive elements with atomic numbers 89 through 103 | Synonyms: actinide, actinon |
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| adenoid | (noun) a collection of lymphatic tissue in the throat behind the uvula (on the posterior wall and roof of the nasopharynx) | Synonyms: Luschka's tonsil, pharyngeal tonsil, third tonsil, tonsilla adenoidea, tonsilla pharyngealis |
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| adenoidectomy | (noun) surgical removal of the adenoids; commonly performed along with tonsillectomy | - |
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| albuminoid | (noun) a simple protein found in horny and cartilaginous tissues and in the lens of the eye | Synonyms: scleroprotein |
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| alkaloid | (noun) natural bases containing nitrogen found in plants | - |
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| ammonoid | (noun) one of the coiled chambered fossil shells of extinct mollusks | Synonyms: ammonite |
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| amphidiploid | (noun) (genetics) an organism or cell having a diploid set of chromosomes from each parent | - |
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| amphidiploidy | (noun) the condition of being amphidiploid | - |
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| amygdaloid | (noun) volcanic rock in which rounded cavities formed by expanding gas have subsequently become filled with mineral deposits | - |
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| amyloid | (noun) (pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue | - |
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| (noun) a non-nitrogenous food substance consisting chiefly of starch; any substance resembling starch | - |
| amyloidosis | (noun) a disorder characterized by deposit of amyloid in organs or tissues; often secondary to chronic rheumatoid arthritis or tuberculosis or multiple myeloma | - |
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| android | (noun) an automaton that resembles a human being | Synonyms: humanoid, mechanical man |
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| (noun) An operating system from Google for mobile devices | - |
| aneroid | (noun) a barometer that measures pressure without using fluids | Synonyms: aneroid barometer |
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| aneuploidy | (noun) an abnormality involving a chromosome number that is not an exact multiple of the haploid number (one chromosome set is incomplete) | - |
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| antherozoid | (noun) a motile male gamete of a plant such as an alga or fern or gymnosperm | Synonyms: spermatozoid |
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| anthropoid | (noun) any member of the suborder Anthropoidea including monkeys and apes and hominids | - |
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| (noun) person who resembles a nonhuman primate | Synonyms: ape |
| arachnoid | (noun) air-breathing arthropods characterized by simple eyes and four pairs of legs | Synonyms: arachnid |
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| (noun) the middle of the 3 meninges | Synonyms: arachnoid membrane |
| aroid | (noun) any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe | Synonyms: arum |
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| arytaenoid | (noun) either of two small cartilages at the back of the larynx to which the vocal folds are attached | Synonyms: arytenoid, arytenoid cartilage |
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| arytenoid | (noun) either of two small cartilages at the back of the larynx to which the vocal folds are attached | Synonyms: arytaenoid, arytenoid cartilage |
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| asteroid | (noun) any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter) | - |
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| autacoid | (noun) any physiologically active internal secretion especially one of uncertain classification | Synonyms: autocoid |
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| autocoid | (noun) any physiologically active internal secretion especially one of uncertain classification | Synonyms: autacoid |
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| avoidance | (noun) deliberately avoiding; keeping away from or preventing from happening | Synonyms: dodging, shunning, turning away |
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| bacteroid | (noun) a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) | - |
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| bioflavinoid | (noun) a vitamin that maintains the resistance of cell and capillary walls to permeation | Synonyms: citrin, vitamin P |
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| blennioid | (noun) elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins | Synonyms: blennioid fish |
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| cancroid | (noun) the most common form of skin cancer | Synonyms: squamous cell carcinoma |
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| carcinoid | (noun) a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin | - |
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| cardioid | (noun) an epicycloid in which the rolling circle equals the fixed circle | - |
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| carotenoid | (noun) any of a class of highly unsaturated yellow to red pigments occurring in plants and animals | - |
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| celluloid | (noun) a medium that disseminates moving pictures | Synonyms: cinema, film |
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| (noun) highly flammable substance made from cellulose nitrate and camphor; used in e.g. motion-picture and X-ray film; its use has decreased with the development of nonflammable thermoplastics | - |
| centroid | (noun) the center of mass of an object of uniform density | - |
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| chancroid | (noun) infectious venereal ulcer | - |
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| cheloid | (noun) raised pinkish scar tissue at the site of an injury; results from excessive tissue repair | Synonyms: keloid |
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| choroid | (noun) a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye | Synonyms: choroid coat |
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| coccidioidomycosis | (noun) an infection of the lungs and skin characterized by excessive sputum and nodules | Synonyms: coccidiomycosis, desert rheumatism, valley fever |
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| colloid | (noun) a mixture with properties between those of a solution and fine suspension | - |
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| conchoid | (noun) Any of a family of curves defined as the locus of points p, such that each p is on a line that passes through a given fixed point P and intersects a given curve, C, and the distance from p to the point of intersection with C is a specified constant (note that for nontrivial cases two such points p satisfy the criteria, and the resultant curve has two parts). | - |
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| conoid | (noun) a shape whose base is a circle and whose sides taper up to a point | Synonyms: cone, cone shape |
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| corticoid | (noun) a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response | Synonyms: adrenal cortical steroid, corticosteroid |
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| corticosteroid | (noun) a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response | Synonyms: adrenal cortical steroid, corticoid |
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| crinoid | (noun) primitive echinoderms having five or more feathery arms radiating from a central disk | - |
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| cuboid | (noun) a rectangular parallelepiped | - |
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| cycloid | (noun) a line generated by a point on a circle rolling along a straight line | - |
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| deltoid | (noun) a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm | Synonyms: deltoid muscle, musculus deltoideus |
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| demantoid | (noun) a green andradite used as a gemstone | - |
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| diploid | (noun) (genetics) an organism or cell having the normal amount of DNA per cell; i.e., two sets of chromosomes or twice the haploid number | - |
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| diploidy | (noun) the condition of being diploid | - |
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| ecdysteroid | (noun) #DD: The name 'ecdysteroid' refers to the insect moulting and sex hormones which include ecdysone and its homologues such as 20-hydroxyecdysone. | - |
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| ellipsoid | (noun) a surface whose plane sections are all ellipses or circles | - |
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| embroiderer | (noun) someone who ornaments with needlework | - |
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| embroideress | (noun) a woman embroiderer | - |
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| embroidery | (noun) decorative needlework | Synonyms: fancywork |
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| (noun) elaboration of an interpretation by the use of decorative (sometimes fictitious) detail | Synonyms: embellishment |
| epicycloid | (noun) a line generated by a point on a circle rolling around another circle | - |
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| ethmoid | (noun) one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity | Synonyms: ethmoid bone |
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| euglenoid | (noun) marine and freshwater green or colorless flagellate organism | Synonyms: euglenid, euglenophyte |
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| eunuchoidism | (noun) the state of being a eunuch (either because of lacking testicles or because they failed to develop) | Synonyms: male hypogonadism |
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| factoid | (noun) a brief (usually one sentence and usually trivial) news item | - |
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| (noun) something resembling a fact; unverified (often invented) information that is given credibility because it appeared in print | - |
| fibroid | (noun) benign tumor containing fibrous tissue (especially in the uterus) | Synonyms: fibroid tumor |
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| flavonoid | (noun) any of a large class of plant pigments having a chemical structure based on or similar to flavone | - |
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| fucoid | (noun) any of various algae of the family Fucaceae | Synonyms: fucoid algae |
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| (noun) a fossilized cast or impression of algae of the order Fucales | - |
| gadoid | (noun) a soft-finned fish of the family Gadidae | Synonyms: gadoid fish |
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| ganoid | (noun) primitive fishes having thick bony scales with a shiny covering | Synonyms: ganoid fish |
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| glucocorticoid | (noun) a steroid hormone that is produced by the adrenal cortex of animals; affects functioning of gonads and has anti-inflammatory activity | - |
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| haematoidin | (noun) an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice | Synonyms: bilirubin, hematoidin |
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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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| haploid | (noun) (genetics) an organism or cell having only one complete set of chromosomes | - |
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| haploidy | (noun) the condition of being haploid | - |
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| hematoidin | (noun) an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice | Synonyms: bilirubin, haematoidin |
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| hemorrhoid | (noun) venous swelling external or internal to the anal sphincter | Synonyms: haemorrhoid, piles |
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| hemorrhoidectomy | (noun) surgical procedure for tying hemorrhoids and excising them | Synonyms: haemorrhoidectomy |
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| heteroploid | (noun) (genetics) an organism or cell having a chromosome number that is not an even multiple of the haploid chromosome number for that species | - |
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| heteroploidy | (noun) the condition of being heteroploid | - |
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| hominoid | (noun) a primate of the superfamily Hominoidea | - |
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| humanoid | (noun) an automaton that resembles a human being | Synonyms: android, mechanical man |
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| hyaloid | (noun) the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina | Synonyms: hyaloid membrane |
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| hydrocolloid | (noun) a substance that forms a gel with water | - |
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| hydroid | (noun) colonial coelenterates having the polyp phase dominant | Synonyms: hydrozoan |
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| hyoid | (noun) a U-shaped bone at the base of the tongue that supports the tongue muscles | Synonyms: hyoid bone, os hyoideum |
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| hyperboloid | (noun) a quadric surface generated by rotating a hyperbola around its main axis | - |
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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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| hyperlipoidemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| hyperparathyroidism | (noun) excessive secretion of parathyroid hormone resulting in abnormally high levels of calcium in the blood; can affect many systems of the body (especially causing bone resorption and osteoporosis) | - |
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| hyperthyroidism | (noun) an overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from excessive production of thyroid hormones | Synonyms: thyrotoxicosis |
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| hypocycloid | (noun) a line generated by a point on a circle that rolls around inside another circle | - |
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| hypoparathyroidism | (noun) inadequate secretion of parathyroid hormone resulting in abnormally low levels of calcium in the blood | - |
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| hypothyroidism | (noun) an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones | - |
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| keloid | (noun) raised pinkish scar tissue at the site of an injury; results from excessive tissue repair | Synonyms: cheloid |
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| ketosteroid | (noun) a steroid containing a ketone group | - |
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| lanthanoid | (noun) any element of the lanthanide series (atomic numbers 57 through 71) | Synonyms: lanthanide, lanthanon, rare-earth element, rare earth |
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| lipoid | (noun) an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates) | Synonyms: lipid, lipide |
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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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| lipoidemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia |
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| mastoid | (noun) process of the temporal bone behind the ear at the base of the skull | Synonyms: mastoid bone, mastoid process, mastoidal |
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| mastoidal | (noun) process of the temporal bone behind the ear at the base of the skull | Synonyms: mastoid, mastoid bone, mastoid process |
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| mastoidale | (noun) the craniometric point at the lowest point of the mastoid process | - |
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| mastoidectomy | (noun) surgical removal of some or all of the mastoid process | - |
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