British Dictionary definitions for spring onion

spring onion

noun

an immature form of the onion (Allium cepa), widely cultivated for its tiny bulb and long green leaves which are eaten in salads, etcAlso called: green onion, scallion

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012