| HEADPEACE | • HEADPEACE n. (archaic) a helmet, also HEADPIECE. |
| HEADPEACES | • headpeaces n. Plural of headpeace. • HEADPEACE n. (archaic) a helmet, also HEADPIECE. |
| EPENCEPHALA | • epencephala n. Plural of epencephalon. • EPENCEPHALON n. the cerebellum. |
| PREHEADACHE | • preheadache adj. Before the onset of a headache. • PREHEADACHE adj. occurring before a headache. |
| MESENCEPHALA | • mesencephala n. Plural of mesencephalon. • MESENCEPHALON n. the middle section of the embryonic brain. |
| METENCEPHALA | • metencephala n. Plural of metencephalon. • METENCEPHALON n. the anterior segment of the developing vertebrate hindbrain. |
| SPERMATHECAE | • spermathecae n. Plural of spermatheca. • SPERMATHECA n. a receptacle for storing spermatozoa in insects. |
| TELENCEPHALA | • telencephala n. Plural of telencephalon. • TELENCEPHALON n. the anterior subdivision of the embryonic forebrain or corresponding part of the adult forebrain. |
| ANENCEPHALIES | • anencephalies n. Plural of anencephaly. • ANENCEPHALY n. congenital absence of all or part of the brain, also ANENCEPHALIA. |
| EPICHEIREMATA | • epicheiremata n. Plural of epicheirema. • EPICHEIREMA n. a syllogism confirmed by an incidental proposition. |
| MEGACEPHALIES | • MEGACEPHALY n. the condition of having an unusually large head or cranial capacity, also MEGALOCEPHALY. |
| MYELENCEPHALA | • myelencephala n. Plural of myelencephalon. • MYELENCEPHALON n. the posterior part of the developing vertebrate hindbrain or the corresponding part of the adult brain composed of the medulla oblongata. |
| HYPERCATALEXES | • HYPERCATALEXIS n. the state of being hypercatalectic. |
| PREANAESTHETIC | • preanaesthetic adj. (Medicine) Administered prior to an anesthetic. • preanaesthetic n. (Medicine) A drug administered prior to anesthesia. • preanæsthetic adj. Obsolete typography of preanaesthetic. |
| SPERMATOTHECAE | • spermatothecae n. Plural of spermatotheca. • SPERMATOTHECA n. a receptacle for storing sperm. |
| ARCHAEOPTERYXES | • archaeopteryxes n. Plural of archaeopteryx. • ARCHAEOPTERYX n. a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits. |
| MACRENCEPHALIES | • MACRENCEPHALY n. the condition of having an abnormally large brain, also MACRENCEPHALIA, MACROCEPHALIA. |
| MEGALOCEPHALIES | • MEGALOCEPHALY n. the condition of having an unusually large head or cranial capacity, also MEGACEPHALY. |
| MESATICEPHALIES | • MESATICEPHALY n. the state of being mesaticephalic. |
| PREANAESTHETICS | • preanaesthetics n. Plural of preanaesthetic. • PREANAESTHETIC n. a drug administered prior to an anaesthetic, also PREANESTHETIC. |