n. [ Gr. da`ktylos finger + -logy. ] The art of communicating ideas by certain movements and positions of the fingers; a form of sign language, especially the manual alphabets used by the deaf and dumb. [ 1913 Webster +PJC ]
☞ There are two different manual alphabets, the one-hand alphabet (which was perfected by Abbé de l'Epée, who died in 1789), and the two-hand alphabet. The latter was probably based on the manual alphabet published by George Dalgarus of Aberdeen, in 1680. See Illustration in Appendix. [ 1913 Webster ]
a. [ Gr. da`ktylos finger + &unr_; wing, fin. ] (Zool.) Having the inferior rays of the pectoral fins partially or entirely free, as in the gurnards. [ 1913 Webster ]
n. [ Gr. da`ktylos finger + E. zooid. ] (Zool.) A kind of zooid of Siphonophora which has an elongated or even vermiform body, with one tentacle, but no mouth. See Siphonophora. [ 1913 Webster ]
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