| ARCHGENETHLIACS | • ARCHGENETHLIAC n. (Browning) in derogatory sense, the greatest of genethliacs or astrologers. | 
| BRACHYCEPHALIES | • brachycephalies n. Plural of brachycephaly. • BRACHYCEPHALY n. the state of being brachycephalic, short-headed.
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| CEPHALOTHORACES | • cephalothoraces n. Plural of cephalothorax. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc.
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| CEPHALOTHORAXES | • cephalothoraxes n. Plural of cephalothorax. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc.
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| DEPHOSPHORYLATE | • dephosphorylate v. To cause, or undergo dephosphorylation. • DEPHOSPHORYLATE v. to remove phosphate groups from an organic compounds.
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| DICHLOROETHANES | • dichloroethanes n. Plural of dichloroethane. • DICHLOROETHANE n. a colorless toxic liquid compound that is used chiefly as a solvent.
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| ENCEPHALOGRAPHS | • encephalographs n. Plural of encephalograph. • ENCEPHALOGRAPH n. an instrument for recording brain images.
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| HALFHEARTEDNESS | • halfheartedness n. The characteristic of being halfhearted. • half-heartedness n. Alternative form of halfheartedness.
 • HALFHEARTED n. lacking heart, spirit, or interest.
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| HETEROTHALLISMS | • heterothallisms n. Plural of heterothallism. • HETEROTHALLISM n. the state of being heterothallic, also HETEROTHALLY.
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| HYDROCEPHALUSES | • hydrocephaluses n. Plural of hydrocephalus. • HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
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| OPHTHALMOMETERS | • ophthalmometers n. Plural of ophthalmometer. • OPHTHALMOMETER n. an instrument for measuring the eye.
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| PHENYLTHIOUREAS | • phenylthioureas n. Plural of phenylthiourea. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene).
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| PHOTOTELEGRAPHS | • phototelegraphs n. Plural of phototelegraph. • PHOTOTELEGRAPH n. an instrument for transmitting drawings telegraphically.
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| RHINENCEPHALONS | • RHINENCEPHALON n. the olfactory lobe of the brain. | 
| SLAUGHTERHOUSES | • slaughterhouses n. Plural of slaughterhouse. • SLAUGHTERHOUSE n. an establishment where animals are butchered.
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| TELEPHOTOGRAPHS | • telephotographs n. Plural of telephotograph. • TELEPHOTOGRAPH n. a photograph of a distant object taken by a suitable lens.
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| TRIHALOMETHANES | • trihalomethanes n. Plural of trihalomethane. • TRIHALOMETHANE n. any of various derivatives of methane such as chloroform, that have three halogen atoms per molecule and are formed esp. during the chlorination of drinking water.
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