| ANENCEPHALY | • anencephaly n. A lethal birth defect in which most of the brain and parts of the skull are missing; absence of the encephalon. • ANENCEPHALY n. congenital absence of all or part of the brain, also ANENCEPHALIA. |
| CHAMAEPHYTE | • chamaephyte n. (Botany) Any low perennial plant whose buds overwinter just above soil level. • CHAMAEPHYTE n. a winter-flowering plant. |
| CHESSPLAYER | • chessplayer n. Alternative spelling of chess player. • chess␣player n. A human or computer that plays the game of chess. • CHESSPLAYER n. one who plays chess. |
| HEPATECTOMY | • hepatectomy n. (Surgery) The surgical removal of all or part of the liver. • HEPATECTOMY n. the surgical removal of the liver. |
| HEPATOCYTES | • hepatocytes n. Plural of hepatocyte. • HEPATOCYTE n. an epithelial parenchymatous cell of the liver. |
| HYPERACTIVE | • hyperactive adj. Having an increased state of activity. • hyperactive adj. Having attention deficit disorder (no longer used by the scientific community). • HYPERACTIVE adj. affected with or exhibiting hyperactivity. |
| HYPERACUSES | • HYPERACUSIS n. an abnormally good sense of hearing. |
| HYPERCHARGE | • hypercharge n. (Physics) Short for hyperonic charge: a quantum characteristic of a group of subatomic particles governed… • HYPERCHARGE v. to charge excessively, to overload. |
| HYPERSPACES | • hyperspaces n. Plural of hyperspace. • HYPERSPACE n. an imagined space having more than three dimensions. |
| HYPOTHECATE | • hypothecate v. (Transitive) To pledge (something) as surety for a loan; to pawn, mortgage. • hypothecate v. (Politics, Britain) To designate a new tax or tax increase for a specific expenditure. • hypothecate v. (Australia) To designate in advance the specific purpose of expenditure for government revenues (especially taxes). |
| MEGACEPHALY | • megacephaly n. Macrencephaly. • MEGACEPHALY n. the condition of having an unusually large head or cranial capacity, also MEGALOCEPHALY. |
| MESOCEPHALY | • mesocephaly n. The property of being mesocephalic. • MESOCEPHALY n. having a medium skull, also MESOCEPHALISM. |
| PACHYMETERS | • pachymeters n. Plural of pachymeter. • PACHYMETER n. an instrument for measuring small thicknesses. |
| PHLYCTAENAE | • PHLYCTAENA n. (Greek) a small blister or vesicle, also PHLYCTENA. |
| POLYCHAETES | • polychaetes n. Plural of polychaete. • POLYCHAETE n. a type of aquatic worm (including lugworms and ragworms), also POLYCHETE. |
| PSYCHEDELIA | • psychedelia n. The subculture associated with those who take psychedelic drugs. • PSYCHEDELIA n. the production of, or the culture associated with, psychedelic experiences, also PSYCHODELIA. |