ˈnämbrə̇l noun
or nombril point
( -s )
Etymology: Middle French nombril, literally, navel, from Old French, probably alteration of lombril, from le the + ombril navel, from (assumed) Vulgar Latin umbiliculus, diminutive of Latin umbilicus navel — more at la , navel
: the center point of the lower half of an armorial escutcheon — called also navel ; see point illustration