Triapsidal
adjective, Architecture.
1.
having three apses.
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- Triarchy
noun, plural triarchies. 1. government by three persons. 2. a set of three joint rulers; a triumvirate. 3. a country divided into three governments. 4. a group of three countries or districts, each under its own ruler. noun (pl) -chies 1. government by three people; a triumvirate 2. a country ruled by three people 3. […]
- Triaryl
adjective, Chemistry. 1. containing three aryl groups.
- Triarylmethane-dye
[trahy-ar-il-meth-eyn] /traɪˌær ɪlˈmɛθ eɪn/ noun, Chemistry. 1. any of the class of dyes containing three aryl groups attached to a central carbon atom: used chiefly for dyeing cotton, wool, and silk.
- Triassic
adjective 1. noting or pertaining to a period of the Mesozoic Era, occurring from 230 to 190 million years ago and characterized by the advent of dinosaurs and coniferous forests. noun 2. Also, Trias [trahy-uh s] /ˈtraɪ əs/ (Show IPA). the Triassic Period or System. adjective 1. of, denoting, or formed in the first period […]
- Triathlete
noun 1. a competitor in a triathlon.