trochilus

Troch"i*lus, n.; pl. Trochili. Etym: [L.trochilus a kind of small bird. Gr. to run.] 1. (Zoöl.) (a) A genus of humming birds. It Formerly included all the known species. (b) Any one of several species of wrens and kinglets. [Obs.] (c) The crocodile bird. 2. (Arch.) Defn: An annular molding whose section is concave, like the edge of a pulley; -- called also scotia.

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