Webster's Revised Unabridged Dictionary · 1913

Sapphic

Sapphic , adjective

[Latin Sapphicus, Greek {not transcribed}, from {not transcribed} Sappho.]

1.
Of or pertaining to Sappho, the Grecian poetess; as, Sapphic odes; Sapphic verse.
2.
(Prosody) Belonging to, or in the manner of, Sappho; -- said of a certain kind of verse reputed to have been invented by Sappho, consisting of five feet, of which the first, fourth, and fifth are trochees, the second is a spondee, and the third a dactyl.

Sapphic , noun

(Prosody) A Sapphic verse.