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2 archaic : THEREUPON 3

there·to adverb : to that

there·un·to adverb, archaic

: THERETO

there·upon adverb 1 : on that matter

2 : for that reason : THEREFORE

3 : immediately after that : at once

there·with adverb 1 : with that

2 archaic : THEREUPON, FORTHWITH

there·with·al adverb 1 archaic : BESIDES

2 : THEREWITH

therm abbreviation thermometer

ther·mal adjective 1 : of, relating to, or caused by heat

2 : designed to prevent the loss of body heat <~ underwear>

— ther·mal·ly adverb

thermal pollution noun : the discharge of heated liquid (as waste water from a factory) into natural waters at a temperature harmful to the environment

therm·is·tor noun : an electrical resistor whose resistance varies sharply with temperature

ther·mo·cline noun : the region in a thermally stratified body of water that separates warmer surface water from cold deep water

ther·mo·cou·ple noun : a device for measuring temperature by measuring the temperature-dependent potential difference created at the junction of two dissimilar metals

ther·mo·dy·nam·ics noun : physics that deals with the mechanical action or relations of heat

— ther·mo·dy·nam·ic adjective

— ther·mo·dy·nam·i·cal·ly adverb

ther·mom·e·ter noun [ORIGIN: F thermomètre, fr. Gk thermē heat + metron measure]

: an instrument for measuring temperature typically by the rise or fall of a liquid (as mercury) in a thin glass tube

— ther·mo·met·ric adjective

— ther·mo·met·ri·cal·ly adverb

ther·mo·nu·cle·ar adjective 1 : of or relating to changes in the nucleus of atoms of low atomic weight (as hydrogen) that require a very high temperature (as in the hydrogen bomb)

2 : utilizing or relating to a thermonuclear bomb <~ war>

ther·mo·plas·tic adjective : capable of softening when heated and of hardening again when cooled <~ resins>

— thermoplastic noun

ther·mos noun : a cylindrical container with a vacuum between an inner and an outer wall used to keep liquids hot or cold

ther·mo·sphere noun : the part of the earth's atmosphere that lies above the mesosphere and that is characterized by steadily increasing temperature with height

ther·mo·stat noun : a device that automatically controls temperature

— ther·mo·stat·ic adjective

— ther·mo·stat·i·cal·ly adverb

the·sau·rus noun, plural -sau·ri or -sau·rus·es [ORIGIN: NL, fr. L, treasure, collection, fr. Gk thēsauros]

: a book of words and their synonyms

— the·sau·ral adjective

these plural of THIS

the·sis noun, plural the·ses 1 : a proposition that a person advances and offers to maintain by argument

2 : an essay embodying results of original research; especially : one written for an academic degree

Synonyms

argument, assertion, contention—more at CONTENTION

1thespian adjective, often cap [ORIGIN: fr. Thespis, 6th cent. B.C. Greek poet and reputed originator of tragedy]

: relating to the drama : DRAMATIC

2thespian noun : ACTOR

Thess abbreviation Thessalonians

Thes·sa·lo·nians noun : either of two books of the New Testament of Christian Scripture

the·ta noun : the 8th letter of the Greek alphabet — Θ or θ

thew noun : MUSCLE, SINEW — usu. used in pl.

they pronoun 1 : those individuals under discussion : the ones previously mentioned or referred to

2 : unspecified persons : PEOPLE

thi·a·mine also thi·a·min noun : a vitamin of the vitamin B complex essential to normal metabolism and nerve function

1thick adjective 1 : having relatively great depth or extent from one surface to its opposite ; also : heavily built : THICKSET

2 : close-packed with units or individuals; also : NUMEROUS

3 : dense or viscous in consistency <~ syrup>

4 : marked by haze, fog, or mist <~ weather>

5 : measuring in thickness

6 : imperfectly articulated : INDISTINCT <~ speech>

7 : lacking sharpness or quickness of sensibility or intellect : STUPID, OBTUSE

8 : associated on close terms : INTIMATE

9 : EXCESSIVE

— thick·ly adverb

Synonyms

[1] broad, fat, thickset, wide—more at WIDE