1. A catch to hold the wheel of a carriage on a declivity.
2. (Mech.)
Defn: A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece. Trigger fish (Zoöl.), a large plectognath fish (Balistes Carolinensis or B. capriscus) common on the southern coast of the United States, and valued as a food fish in some localities. Its rough skin is used for scouring and polishing in the place of sandpaper. Called also leather jacket, and turbot.
TRIGINTAL
Tri*gin`tal, n. Etym: [LL. trigintate, fr. L. triginta thirty. See
Trental.] (R. C. Ch.)
Defn: A trental.
TRIGLYCERIDE
Tri*glyc"er*ide, n. Etym: [Pref. tri- + glyceride.] (Chem.)
Defn: A glyceride formed by the replacement of three hydrogen atoms in glycerin by acid radicals.
TRIGLYPH
Tri"glyph, n. Etym: [L. triglyphus, Gr. Tri-) + triglyphe.] (Arch.)
Defn: An ornament in the frieze of the Doric order, repeated at equal intervals. Each triglyph consists of a rectangular tablet, slightly projecting, and divided nearly to the top by two parallel and perpendicular gutters, or channels, called glyphs, into three parts, or spaces, called femora. A half channel, or glyph, is also cut upon each of the perpendicular edges of the tablet. See Illust. of Entablature.
TRIGLYPHIC; TRIGLYPHICAL
Tri*glyph"ic, Tri*glyph"ic*al, a.