From Longman Dictionary of Contemporary Englishgroingroin /ɡrɔɪn/ noun [countable] 1 HBHthe place where the tops of your legs meet the front of your body2 TBa groyne
Examples from the Corpus
groin• Already Williams has been hobbled during the exhibition season by a groin injury and now the ankle.• Centre Bill Harbinson went off early in the second half with a groin injury and could miss the rest of the season.• The tendons in my groin pained all the way to the knees in one direction and to the teeth in the other.• The usual target areas are the groin, the kneecaps or the shins.• I kneed him in the groin.• Quick-steps in and out of the groin.• Though this stance protects the groin, it leaves the front foot susceptible to a front sweep.Origin groin Old English grynde “valley”; influenced by groin “animal's nose” ((14-19 centuries)) 