| ANTITHROMBIN | • antithrombin n. A small molecule that inactivates several enzymes of the coagulation system. • ANTITHROMBIN n. a substance in blood preventing coagulation of blood.
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| BETROTHMENTS | • betrothments n. Plural of betrothment. • BETROTHMENT n. the state of being betrothed.
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| BIOSYNTHETIC | • biosynthetic adj. (Biochemistry) of or pertaining to biosynthesis. • BIOSYNTHETIC adj. relating to biosynthesis.
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| BLETHERATION | • BLETHERATION n. blethering. | 
| BOTHERATIONS | • botherations n. Plural of botheration. • BOTHERATION n. trouble, bother.
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| BUTTONBUSHES | • buttonbushes n. Plural of buttonbush. • BUTTONBUSH n. a North American shrub of the madder family with globular flower heads.
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| BUTTONHOLERS | • buttonholers n. Plural of buttonholer. • BUTTONHOLER n. a person or sewing-machine attachment that makes buttonholes.
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| BUTTONHOLING | • buttonholing v. Present participle of buttonhole. • buttonholing n. The act of detaining someone in conversation against his or her will.
 • BUTTONHOLE v. to detain in talk, also BUTTONHOLD.
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| BUTTONHOOKED | • buttonhooked v. Simple past tense and past participle of buttonhook. • BUTTONHOOK v. to make a kind of offensive play in American football.
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| COHABITATION | • cohabitation n. An emotional and physical intimate relationship which includes a common living place and which exists… • cohabitation n. The act of living together.
 • cohabitation n. A place where two or more individuals reside together.
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| HABILITATION | • habilitation n. Equipment; qualification. • habilitation n. An act of habilitating.
 • habilitation n. An academic qualification, prerequiring a PhD, required in order to gain tenure as a professor in some…
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| HABITATIONAL | • habitational adj. Pertaining to habitation or an inhabited region. • habitational adj. (Of a name) Deriving from the name of a place where a presumed ancestor once lived.
 • HABITATIONAL adj. relating to habitation.
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| HABITUATIONS | • habituations n. Plural of habituation. • HABITUATION n. the process of habituating.
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| INHABITATION | • inhabitation n. The act of inhabiting, or the state of being inhabited; indwelling. • inhabitation n. Abode; place of dwelling; residence.
 • inhabitation n. Population; inhabitants.
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| KATABOTHRONS | • KATABOTHRON n. (Modern Greek) an underground water channel, also KATAVOTHRON. | 
| OUTBREATHING | • outbreathing v. Present participle of outbreathe. • outbreathing n. A breathing out; an exhalation.
 • OUTBREATHE v. to breathe forth.
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| OUTTHROBBING | • outthrobbing v. Present participle of outthrob. • OUTTHROB v. to surpass in throbbing.
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| PHYTOBENTHOS | • phytobenthos n. (Biology) benthic organisms that are plants or algae. • PHYTOBENTHOS n. plants living at the bottom of water collectively.
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| SUBHASTATION | • subhastation n. (Archaic) A public sale or auction. • SUBHASTATION n. (historical) sale by public auction.
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| THUNDERBOLTS | • thunderbolts n. Plural of thunderbolt. • THUNDERBOLT n. a flash of lightning conceived as a bolt hurled from the heavens.
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