Trilling :: Trilling (n.) One of tree children born at the same birth.
Trilling :: Trilling (n.) A compound crystal, consisting of three individuals..
Trillion :: Trillion (n.) According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power, or the number represented by a unit with eighteen ciphers annexed. See the Note under Numeration..
Trillium :: Trillium (n.) A genus of liliaceous plants; the three-leaved nightshade; -- so called because all the parts of the plant are in threes.