lacuna
/ləˈkjuːnə/noun
(pl. lacunae /-niː/ 或lacunas)
1- an unfilled space or interval; a gap空白, 空隙：
the journal has filled a lacuna in Middle Eastern studies.
该杂志填补了中东研究的一项空白。
1.1
- a missing portion in a book or manuscript（书或原稿中的）脱漏。
1.2
- Anatomy a cavity or depression, especially in bone【剖】（尤指骨）腔隙, 陷窝。
派生词
lacunal
adjectivelacunary
adjectivelacunate
adjectivelacunose
adjective词源
mid 17th cent.: from Latin， 'pool'， from lacus 'lake'.