| ANTARTHRITICS | • antarthritics n. Plural of antarthritic. • ANTARTHRITIC n. a drug used against arthritis.
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| ANTIARTHRITIS | • antiarthritis adj. Countering arthritis. • ANTIARTHRITIS adj. designed to prevent arthritis.
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| CATASTROPHIST | • catastrophist adj. Of, having, or being a theory that explains a situation by positing one or more catastrophic events… • catastrophist n. A catastrophist person: a person who subscribes to a catastrophist theory.
 • CATASTROPHIST n. a believer in catastrophism.
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| FEATHERSTITCH | • featherstitch n. A kind of embroidery stitch made of open, looped stitches worked alternately to the right and left of a central rib. • featherstitch v. To make stitches of this kind.
 • FEATHERSTITCH n. an embroidery stitch consisting of a line of diagonal blanket stitches worked alternately to the left and right.
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| HATEWORTHIEST | • HATEWORTHY adj. worthy of hate. | 
| STRAIGHTFORTH | • straightforth adv. Directly. • STRAIGHTFORTH adv. directly forward; straight away, immediately.
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| TETRAHEDRITES | • tetrahedrites n. Plural of tetrahedrite. • TETRAHEDRITE n. native sulphide of antimony, iron, and copper, forming a series with tennantite and typically occurring as tetrahedral crystals.
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| TETRASTICHOUS | • tetrastichous adj. (Botany) Arranged in four vertical rows. • TETRASTICHOUS adj. having four rows.
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| THAUMATURGIST | • thaumaturgist n. A performer of thaumaturgy; a performer of miracles; a magician. • THAUMATURGIST n. a performer of miracles, also THAUMATURGUS.
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| THEANTHROPIST | • theanthropist n. A proponent of theanthropism. • THEANTHROPIST n. one who believes that gods can take human forms.
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| THEOREMATISTS | • theorematists n. Plural of theorematist. • THEOREMATIST n. one who creates theorems.
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| THERAPEUTISTS | • therapeutists n. Plural of therapeutist. • THERAPEUTIST n. a person skilled in therapeutics.
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| THERMOSTATICS | • thermostatics n. (Physics) The part of thermodynamics that deals with reversible or infinitesimally small changes. • THERMOSTATICS n. the branch of science concerned with thermal equilibrium.
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| THERMOSTATING | • THERMOSTAT v. to provide with or control the temperature of by a thermostat, a device for keeping temperature stead. | 
| TRITHEISTICAL | • tritheistical adj. Of or relating to tritheism. • TRITHEISTICAL adj. relating to tritheism, also TRITHEISTIC.
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| ULTRARIGHTIST | • ultrarightist n. A person of ultraright politics. • ULTRARIGHTIST n. an extreme conservative.
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