thymyl (th ast)

[Eng. thym (ol); -yl.] Chem.: C10H13. The radical of thymol and its derivatives. thymyl sulphuric-acid, s. Chemistry: C10H14HSO4. Sulphothymic acid. Formed by the action of oil of vitriol on thymol. Its aqueous solution evaporated in a vacuum crystallizes in translucent pearly tables or prisms, which are very soluble in water. With bases it forms a series of crystalline compounds. thy-myl-ic (th as t), adj. [Eng. thymyl; -ic.] Contained in or derived from thymol (q. v.). thymylic-acid, alcohol, or hydrate, subst. [THYMOL.] thyn-nich-thys, subst . [Gr. thynnosa tunny (q. v.), and ichthys =a fish.] Ichthy. & Palæont .: A genus of Cyprinide, Cyprinina, with three species, from the East Indies. Specimens have been found in the Miocene. *thyn-ni-dæ, s. pl. [Mod. Lat. thynn (us), 2; Entom .: An old family of Fo orial Hymenoptera, now merged in Sapygide. Lat. fem. pl. adj. suff. -idæ.1 thyn-nŭs, s. [Lat., from Gr. thynnos =the tunny (q. v.), from thy no to rush fast, to dart along.] 1. Ichthy. & Palæont .: A genus of Scombride, with several species, ranging over tropical and temperate seas. First dorsal continuous, spines feeble; from six to nine finlets behind the dorsal and anal; scales of pectoral crowded, forming a corselet; a longitudinal keel on each side of the tail. Not uncommon in Eocene and Miocene formations. *2. Entom .: A genus of Thynnide (q. v.). thyr-e-ō-(yr as ir), pref . [THYRO-.] thyr-e-op-ter-i-ne (yr as ir), s. pl . [Prefix thyreo-; Greek pteron a feather, a wing, and Lat. fem. pl. adj. suff. -inæ.] Entom.: A sub-family of Truncatipenne (q. v.). They seek their prey upon or under the bark of trees where small insects abound. thyr-ō-(yr as ir), pref . [Greek thyreos =a doorstone, a large, oblong shield, shaped like a door; thyra a door.] Shaped like a door; oblong. IMG:content-1098.jpg:[blocks in formation] 4088 thyroid, thyr-e-bid (yr as ir), adj . [Pref. thyro-, thyreo , and Gr. eidos =form.] Anat.: Of an oblong form; shaped like an oblong shield.