D defs.my
Entry 3 senses Webster, 1913

Citron

/(sĭt"rŭn)/ · Cit·ron · IPA /ˈsɪtɹən/
01 n. A fruit resembling a lemon, but larger, and pleasantly aromatic; it is produced by the citron tree (Citrus medica). The thick rind, when c…
  1. 1.
    A fruit resembling a lemon, but larger, and pleasantly aromatic; it is produced by the citron tree (Citrus medica). The thick rind, when candied, is the citron of commerce. The fruit was once called the lime.(Bot) Also: lime
  2. 2.
    A citron tree, Citrus medica.
  3. 3.
    A citron melon.
Phrases & compounds
Citron melon — A small variety of muskmelon with sugary greenish flesh.
Citron tree — the tree which bears citrons. It was probably a native of northern India, and is now understood to be the typical form of Citrus Medica.