Webster's Revised Unabridged Dictionary · 1913

Trochilus

Trochilus , noun

[Latin trochilus a kind of small bird. Greek {not transcribed}, from {not transcribed} to run.]

1.
(a) (Zoology) A genus of humming birds. It Formerly included all the known species.
(b)
(Zoology) Any one of several species of wrens and kinglets.
(c)
(Zoology) The crocodile bird. [Obsolete]
2.
(Architecture) An annular molding whose section is concave, like the edge of a pulley; -- called also scotia.