| trillachan | <zoology> The oyster catcher. Source: Websters Dictionary (01 Mar 1998) |
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| trilling | 1. One of tree children born at the same birth. 2. <chemistry> A compound crystal, consisting of three individuals. Origin: Cf. G. Drilling. Source: Websters Dictionary (01 Mar 1998) |
| trillium | <botany> A genus of liliaceous plants; the three-leaved nightshade; so called because all the parts of the plant are in threes. Origin: NL.; cf. L. Trilix triple-woven, triple. Source: Websters Dictionary (01 Mar 1998) |