n. [ Pref. pro- for, in place of + leg. ] (Zool.) One of the fleshy legs found on the abdominal segments of the larvæ of Lepidoptera, sawflies, and some other insects. Those of Lepidoptera have a circle of hooks. Called also proped, propleg, and falseleg. [ 1913 Webster ]

n. [ L. prolegatus; pro for + legatus legate. ] (Rom. Hist.) The deputy or substitute for a legate. [ 1913 Webster ]

a. Of the nature of a prolegomenon; preliminary; introductory; prefatory. [ 1913 Webster ]

‖n.; pl. Prolegomena [ NL., fr. Gr. &unr_;, properly neut. pass. p. pr. of &unr_; to say beforehand; &unr_; before + &unr_; to say. ] A preliminary remark or observation; an introductory discourse prefixed to a book or treatise. D. Stokes (1659). Sir W. Scott. [ 1913 Webster ]