lacuna

(lă-koo′nă)

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(lă-koo′nē″)

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pl. lacunae [L., lacuna, pit, gap, deficiency]

1. An empty space, gap, or hollow area.
2. The space occupied by cells of calcified tissues, e.g., cementocytes, chondrocytes, and osteocytes.
3. A focal loss of brain tissue due to a stroke involving a small penetrating artery in the brain.

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