1. A young onion before the bulb has enlarged; eaten in salads
   "scallions are often used as a garnish in Asian dishes";
   - green onion [N. Amer], spring onion [Brit]
    
2. Plant having a large slender white bulb and flat overlapping dark green leaves; used in cooking; believed derived from the wild Allium ampeloprasum
   "The chef added sliced scallions to the potato soup";
   - leek, Allium porrum

Derived forms: scallions

Type of: alliaceous plant, onion

Encyclopedia: Scallion