groin

¹groin

noun \ˈgrȯin\

Definition of GROIN

1

: the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh; also : the region of this line

2

a : the projecting curved line along which two intersecting vaults meet

b : a rib that covers this edge

3

: a rigid structure built out from a shore to protect the shore from erosion, to trap sand, or to direct a current for scouring a channel

Illustration of GROIN

Origin of GROIN

alteration of Middle English grynde, from Old English, abyss; akin to Old English grund ground

First Known Use: circa 1532

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral

Rhymes with GROIN

coin, foin, groyne, join, loin, quoin

²groin

transitive verb

Definition of GROIN

: to build or equip with groins

Illustration of GROIN

First Known Use of GROIN

circa 1816

Other Architecture Terms

buttress, casita, cornice, fanlight, garret, lintel, parapet, pilaster, plinth

groin

noun \ˈgrȯin\   (Medical Dictionary)

Medical Definition of GROIN

: the fold or depression marking the juncture of the lower abdomen and the inner part of the thigh; also : the region of this line