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gressorial |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Gressorial \Gres*so"ri*al\, Gressorious \Gres*so"ri*ous\, a. [L. gressus p. p. of gradi to step, go.] (Zool.) Adapted for walking; anisodactylous; as the feet of certain birds and insects. See Illust. under {Aves}.