"scallion" in the noun sense
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
Source: WordNet® (An amazing lexical database of English)
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