Definition of "robin"

Any of various passerine birds (about 100 species) of the families Muscicapidae, Turdidae and Petroicidae (formerly Eopsaltriidae), typically with a red breast.

1. A European robin, Erithacus rubecula.  quotations  examples

   Quotations

   • As they turned into Hertford Street they startled a robin from the poet's head on a barren fountain, and he fled away with a cameo note.

     1922, Michael Arlen, “Ep./4/2”, in “Piracy”: A Romantic Chronicle of These Days

2. An American robin, Turdus migratorius.  examples

(historical) A trimming in front of a dress.

(organic chemistry) A toxalbumin obtained from the locust tree.  examples