| AFTERTHOUGHT | • afterthought n. A reflection after an act; a later or subsequent thought, action, or expedient. • afterthought n. Something additional to the original plan or concept.
 • afterthought v. (Very rare except in the past tense, possibly nonstandard) To expound as an afterthought.
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| CATHETOMETER | • cathetometer n. An instrument used to measure small vertical distances, such as the levels of liquid in tubes. • CATHETOMETER n. an instrument for measuring short vertical distances.
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| HETEROTACTIC | • heterotactic adj. Of or pertaining to heterotaxis. • heterotactic adj. (Chemistry, of a polymer) Having substituents arranged in a random configuration in each repeat unit.
 • HETEROTACTIC adj. abnormally arranged.
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| METHOTREXATE | • methotrexate n. (Pharmacology) An antimetabolite and antifolate drug used in treatment of cancer and autoimmune diseases. • METHOTREXATE n. a drug used in the treatment of cancer.
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| STOUTHEARTED | • stouthearted adj. Brave, courageous and plucky. • stouthearted adj. Stubborn, resolute.
 • stout-hearted adj. Alternative form of stouthearted.
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| TETRACHOTOMY | • tetrachotomy n. Division of a whole into four parts. • tetrachotomy n. (Logic) Quaternary classification.
 • tetrachotomy n. Tetralemma.
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| THEOREMATIST | • theorematist n. Someone who constructs theorems. • THEOREMATIST n. one who creates theorems.
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| THERMOSTATED | • thermostated adj. Alternative form of thermostatted. • THERMOSTAT v. to provide with or control the temperature of by a thermostat, a device for keeping temperature stead.
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| THERMOSTATIC | • thermostatic adj. Having or maintaining a consistent temperature. • thermostatic adj. (Physiology) Relating to thermostasis.
 • THERMOSTATIC adj. relating to thermal equilibrium.
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| THERMOTACTIC | • thermotactic adj. Relating to thermotaxis. • THERMOTACTIC adj. of or showing thermotaxis, also THERMOTAXIC.
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| THROTTLEABLE | • throttleable adj. Capable of being throttled. • THROTTLEABLE adj. capable of having the thrust varied.
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| TITANOTHERES | • titanotheres n. Plural of titanothere. • TITANOTHERE n. any of various very large extinct horselike perissodactyl mammals.
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| TRITHIONATES | • trithionates n. Plural of trithionate. • TRITHIONATE n. a salt of trithionic acid.
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| TROPHOTACTIC | • TROPHOTACTIC adj. relating to trophotaxis, chemotaxis and chemotropism where the stimulating substance is food. | 
| WHITETHROATS | • whitethroats n. Plural of whitethroat. • WHITETHROAT n. any of several birds with white on the throat.
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