Emily Dickinson Lexicon

TRO'CHI-LUS, or TRO'CHIL, n. [L. trochilus; Gr. τροχιλος, from τρεχω, to run.]

1. An aquatic bird, a swift runner, with long legs, which is said to get its meat out of the crocodile's mouth. Ainsworth.
2. A name given to the golden crowned wren. Cyc.
3. In zoology, the humming-bird or honey-sucker, a kind of beautiful little birds, natives of America. Cyc.
4. In architecture, a hollow ring round a column; called also scotia, and by workmen, the casement. Cyc.