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Definition of vesicle
1a : a membranous and usually fluid-filled pouch (such as a cyst, vacuole, or cell) in a plant or animalb : a small abnormal elevation of the outer layer of skin enclosing a watery liquid : blisterc : a pocket of embryonic tissue that is the beginning of an organ
2 : a small cavity in a mineral or rock
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Recent Examples of vesicle from the Web
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A foot-long oval split down the middle, and each half is full of little capsules like the vesicles in an orange segment.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vesicle'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of vesicle
Middle French vesicule, from Latin vesicula small bladder, blister, from diminutive of vesica
Medical Dictionary
vesicle
playMedical Definition of vesicle
1a: a membranous and usually fluid-filled pouch (as a cyst, vacuole, or cell) in a plant or animalb: synaptic vesicle
2: a small abnormal elevation of the outer layer of skin enclosing a watery liquid : blister
3: a pocket of embryonic tissue that is the beginning of an organ—see brain vesicle, optic vesicle, otic vesicle
Learn More about vesicle
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Spanish Central: Translation of vesicle Nglish: Translation of vesicle for Spanish speakers Britannica English: Translation of vesicle for Arabic speakers
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