1. (

• leek ,
• scallion ,
• Allium_porrum

) plant having a large slender white bulb and flat overlapping dark green leaves; used in cooking; believed derived from the wild Allium ampeloprasum ;

2. (

• green_onion ,
• spring_onion ,
• scallion

) a young onion before the bulb has enlarged; eaten in salads ;