| BETULACEOUS | • betulaceous adj. (Botany) Belonging to the Betulaceae. • BETULACEOUS adj. belonging to the birch family.
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| BUTYRACEOUS | • butyraceous adj. Of, pertaining to or containing butter; buttery. • BUTYRACEOUS adj. resembling, producing or having the qualities of butter, also BUTYROUS.
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| COUNTERBUFF | • counterbuff n. A buff (strike) in return; a counterblow. • counterbuff v. To strike or drive back or in an opposite direction; to stop by a blow or impulse in front.
 • COUNTERBUFF v. to rebuff.
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| DEBOUCHURES | • debouchures n. Plural of debouchure. • DEBOUCHURE n. (French) the mouth of a river or strait.
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| EMBOUCHURES | • embouchures n. Plural of embouchure. • EMBOUCHURE n. (French) the position and use of the lips in producing a musical tone on a wind instrument.
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| MICROTUBULE | • microtubule n. A small tube made of protein and found in cells; part of the cytoskeleton. • MICROTUBULE n. any of the relatively rigid structures in the cytoplasm of many plant and animal cells.
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| SCABERULOUS | • scaberulous adj. (Botany) slightly scabrous or roughened. • SCABERULOUS adj. (archaic) somewhat scabrous or rough.
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| SUBCOUNTIES | • subcounties n. Plural of subcounty. • SUBCOUNTY n. a part of a county.
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| SUBMOLECULE | • submolecule n. (Chemistry) Any part of a molecule, especially a radical. • submolecule n. A particle smaller than a molecule.
 • SUBMOLECULE n. a part of a molecule.
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| SUBOPERCULA | • subopercula n. Plural of suboperculum. • SUBOPERCULUM n. in fishes, a bone below and partly behind the gill cover.
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| SUCCOURABLE | • succourable adj. Alternative form of succorable. • SUCCOURABLE adj. that can be succored, also SUCCORABLE.
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| TUBERACEOUS | • tuberaceous adj. Belonging to family Tuberaceae of mycorrhizal fungi. • TUBERACEOUS adj. belonging to the Tuberaceae, edible fungi including truffles.
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| TUBERCULOID | • tuberculoid adj. Of, pertaining to, or resembling a tubercule. • tuberculoid adj. Of or pertaining to tuberculosis.
 • TUBERCULOID adj. resembling tuberculosis esp. in the presence of tubercles.
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| TUBERCULOMA | • tuberculoma n. (Medicine) A lesion associated with tuberculosis. • TUBERCULOMA n. a slow-growing, circumscribed tuberculous lesion.
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| TUBERCULOSE | • tuberculose adj. Tubercular. • TUBERCULOSE adj. tuberculous, also TUBERCULOSED, TUBERCULOUS.
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| TUBERCULOUS | • tuberculous adj. Tubercular; having or relating to tuberculosis. • TUBERCULOUS adj. relating to tubercles, also TUBERCULOSE, TUBERCULOSED.
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| UNBOUNCIEST | • UNBOUNCY adj. not bouncy. | 
| UNCOUNTABLE | • uncountable adj. So many as to be incapable of being counted. • uncountable adj. (Mathematics) Incapable of being put into one-to-one correspondence with the natural numbers or any subset thereof.
 • uncountable adj. (Grammar, of a noun) That cannot be used freely with numbers or the indefinite article, and therefore…
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| UNTOUCHABLE | • untouchable adj. Not able to be touched. • untouchable adj. Not able to be defeated or bested.
 • untouchable n. A criminal who is so well-connected that they cannot be harmed.
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| UPBUOYANCES | • UPBUOYANCE n. the act of buoying up. |