claustrum claus·trum (klô'strəm)
n. pl. claus·tra (-trə)
Any of several anatomical structures resembling a barrier, especially a thin vertical lamina of gray matter of the brain lying close to the outer portion of the lenticular nucleus, from which it is separated by the external capsule.
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a stew of meat, vegetables, potatoes, etc.|