ru·di·ment /ˈrudəmənt/
 基礎,入門,雛形,退化器官


 ru·di·ment /ˈrudəmənt/ 名詞
 退化器官


 Ru·di·ment n.
 1. That which is unformed or undeveloped; the principle which lies at the bottom of any development; an unfinished beginning.
 but I will bring thee where thou soon shalt quit
 Those rudiments, and see before thine eyes
 The monarchies of the earth.   --Milton.
    the single leaf is the rudiment of beauty in landscape.   --I. Taylor.
 2. Hence, an element or first principle of any art or science; a beginning of any knowledge; a first step.
 This boy is forest-born,
 And hath been tutored in the rudiments
 of many desperate studies.   --Shak.
 There he shall first lay down the rudiments
 Of his great warfare.   --Milton.
 3. Biol. An imperfect organ or part, or one which is never developed.


 Ru·di·ment, v. t. To furnish with first principles or rules; to insrtuct in the rudiments.

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 rudiment
      n 1: the elementary stages of any subject (usually plural); "he
           mastered only the rudiments of geometry" [syn: {first
           rudiment, first principle, alphabet, ABC, ABC's,
            ABCs]
      2: the remains of a body part that was functional at an earlier
         stage of life; "Meckel's diverticulum is the rudiment of
         the embryonic yolk sac"