| ALEXIPHARMAKONS | • ALEXIPHARMAKON n. an antidote to poison. | 
| CANTHAXANTHINES | • CANTHAXANTHINE n. a naturally occurring carotenoid used esp. as a color additive for food, also CANTHAXANTHIN. | 
| CHEMOTAXONOMIES | • chemotaxonomies n. Plural of chemotaxonomy. • CHEMOTAXONOMY n. the classification of plants and animals based on similarities and differences in biochemical composition.
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| CHEMOTAXONOMIST | • chemotaxonomist n. One who studies chemotaxonomy. • CHEMOTAXONOMIST n. one who practises chemotaxonomy.
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| DEXAMPHETAMINES | • DEXAMPHETAMINE n. the dextrorotatory isomer of amphetamine, used as a stimulant. | 
| HETEROSEXUALITY | • heterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex. • heterosexuality n. Sexual activity with a person of the opposite sex.
 • HETEROSEXUALITY n. the state of being heterosexual.
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| HEXOSAMINIDASES | • hexosaminidases n. Plural of hexosaminidase. • HEXOSAMINIDASE n. either of two hydrolytic enzymes that catalyze the splitting off of a hexose from a ganglioside and are deficient in some metabolic diseases.
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| HIERACOSPHINXES | • hieracosphinxes n. Plural of hieracosphinx. • HIERACOSPHINX n. in ancient Egyptian art, a hawk-headed sphinx.
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| HOMOSEXUALITIES | • homosexualities n. Plural of homosexuality. • HOMOSEXUALITY n. the state of being homosexual.
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| HYDROXYAPATITES | • hydroxyapatites n. Plural of hydroxyapatite. • HYDROXYAPATITE n. a complex phosphate of calcium that occurs as a mineral and is the chief structural element of vertebrate bone.
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| LEXICOGRAPHISTS | • lexicographists n. Plural of lexicographist. • LEXICOGRAPHIST n. one who makes dictionaries.
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| METHYLXANTHINES | • methylxanthines n. Plural of methylxanthine. • METHYLXANTHINE n. a methylated xanthine derivative, such as caffeine, theobromine, or theophylline.
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| OXYHAEMOGLOBINS | • oxyhaemoglobins n. Plural of oxyhaemoglobin. • OXYHAEMOGLOBIN n. a loose compound of oxygen and haemoglobin, also OXYHEMOGLOBIN.
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| PSYCHOSEXUALITY | • psychosexuality n. The psychological aspects of sexuality. • PSYCHOSEXUALITY n. the psychic factors of sex.
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