n. A small sylviine bird of Europe, Erythacus rubecula, more fully called robin-redbreast, and also redbreast, robinet, and ruddock.n. The red-breasted or migratory thrush of North America, Turdus migratorius or Merula migratoria, one of the most abundant and familiar of North American birds: so called from the reddish-brown color of the under parts, which, however, is very different, both in hue and in extent, from that of the European redbreast.n. With a qualifying term, one of numerous warbler-like or thrush-like birds, more or less nearly related to or resembling either of the foregoing: as, the blue-throated robin. (See Cyanecula, and cut under bluethroat.)n. The robin-snipe or red-breasted sandpiper, Tringa canutus: a clipped name among gunners. Also beach-robin. See knot, 1.n. The sea-robin or red-breasted merganser, Mergus serrator.n. In ichthyology, a sea-robin or flying-robin; one of several kinds of Triglidæ.n. A local name of the pinfish.n. A name variously applied (commonly as part of a compound) to the herb-robert, to species of Lychnis, and to some other plants.n. A trimming on the front of a dress.n. Same as robbin.n. n. A toxin obtained from the Robinia Pseudacacia, a locust-tree of North America.