n.
Pronunciation: l ə - ' kü-n ə , - ' kyü-
Function: noun
Inflected Form: plural la · cu · nae \ - ' kyü-( ˌ )n ē , - ' kü- ˌ n ī \ also la · cu · nas \ - ' kü-n ə z, - ' kyü- \
Etymology: Latin, pool, pit, gap ― more at LAGOON
Date: 1652
1 : a blank space or a missing part : GAP <the evident lacunae in his story ― Shirley Hazzard> also : DEFICIENCY 1 <despite all these lacunae, those reforms were a vast improvement ― New Republic >
2 : a small cavity, pit, or discontinuity in an anatomical structure
– la · cu · nar \ - ' kü-n ə r, - ' kyü- \ also la · cu · nate \ l ə - ' kü-n ə t, - ' kyü-, - ˌ n ā t; ' la-ky ə - ˌ n ā t \ adjective