lacuna
la·cu·na
noun \lə-ˈk(y)ü-nə\plural ; la·cu·nae \-ˈkyü-(ˌ)nē, -ˈkü-ˌnī\ (audio pronunciation) (audio pronunciation)
Definition of LACUNA
: a small cavity, pit, or discontinuity in an anatomical structure: as a : one of the follicles in the mucous membrane of the urethra b : one of the minute cavities in bone or cartilage occupied by the osteocytes
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