Theca, thē′ka, n. a sheath, case, or sac, a spore-case: a case for a corporal-cloth:—pl. Thē′cæ.—adjs. Thē′cal, Thē′cate.—ns. Thē′caphore, a receptacle bearing thecæ; Thē′caspore, a spore produced in a theca.—adjs. Thecaspō′rous; Thecif′erous, bearing thecæ; Thē′ciform, thecal in use or form.—n. Thē′cium, the part of the apothecium containing the organs of the fruit in lichens. [Gr. thēkē.]
Thecla, thek′la, n. a genus of butterflies, containing the hair-streaks.
Thee, thē, pron. objective of thou. [A.S. the, dat. accus. of thu (cf. Thou).]
Thee, thē, v.i. (Spens.) to prosper, to thrive. [A.S. theón, thión, to thrive, to grow; Ger. ge-deihen, to increase.]
Theft, theft, n. act of thieving.—adj. Theft′ūous, thievish.—adv. Theft′ūously. [A.S. theófth, thýfth—theóf, thief.]
Theine, thē′in, n. a bitter crystallisable volatile principle found in tea.—ns. Thē′ic, a tea-drunkard; Thē′ism, a morbid state resulting from over-much tea-drinking.
Their, thār, poss. adj. pron. of or belonging to them. [A.S. þára, gen. pl. of the def. art. (replaced the older hira).]
Theirs, thārz, poss. of they. [Like hers, ours, yours, a double genitive containing a plural suffix r + a sing. -s. These forms were confined in the 13th and 14th centuries to the Northern dialects, and are probably due to Scandinavian influence.]
Theism, thē′izm, n. belief in the existence of God with or without a belief in a special revelation.—n. Thē′ist, one who believes in God.—adjs. Thēist′ic, -al, pertaining to theism, or to a theist: according to the doctrines of theists. [Gr. theos, God.]
Them, them, pron. objective of they. [A.S. ðám, dat. pl. of the def. art. (this replaced the older heom, hem). It is the result of two cross influences; the th is taken from Old Norse þeim, the e from A.S. hem.]