vac·u·ole
noun/ˈvækjuəʊl/
/ˈvækjuəʊl/
- (biology) a small space within a cell, usually filled with liquid
（细胞内的）液泡，泡 - (medical) a small hole in the tissue of the body, usually caused by disease
（身体组织中由疾病等造成的）空泡
Word Originmid 19th cent.: from French, diminutive of Latin vacuus ‘empty’.