Emily Dickinson Lexicon

SYL'VA, n. [L., a wood or forest.]

1. In poetry, a poetical piece composed in a start or kind of transport.
2. A collection of poetical pieces of various kinds. – Cyc.
3. A work containing a botanical description of the forest; trees of any region or country; as Michaux's Sylva Americana.
4. The forest trees themselves of any region or country.