leek Meaning, Definition & Usage

  1. noun plant having a large slender white bulb and flat overlapping dark green leaves; used in cooking; believed derived from the wild Allium ampeloprasum
    Allium porrum; scallion.
  2. noun related to onions; white cylindrical bulb and flat dark-green leaves

WordNet

Leek noun
Etymology
AS.leác; akin to D. look, G. lauch, OHG. louh, Icel. laukr, Sw. lök, Dan lög. Cf. Garlic.
Definitions
  1. (Bot.) A plant of the genus Allium (A. Porrum), having broadly linear succulent leaves rising from a loose oblong cylindrical bulb. The flavor is stronger than that of the common onion.

Webster 1913