gingerroot

[jin-jer-root, -roo t]

noun

the rhizome of the ginger plant.

Also called root ginger, race ginger, race.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for root ginger

root ginger

noun

the raw underground stem of the ginger plant used finely chopped or grated, esp in Chinese dishes
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