Emily Dickinson Lexicon

DAC-TYL-OL'O-GY, n. [Gr. δακτυλος, finger, and λογος, discourse.]

1. The act or the art of communicating ideas or thoughts by the fingers. Deaf and dumb persons acquire a wonderful dexterity in this art.
2. The science which treats of the history and qualities of finger rings. Elmes.