capsule

verb

capsuled; capsuling
Synonyms of capsulenext

transitive verb

1
: to equip with or enclose in a capsule
2
: to condense into or devise in a compact form
capsuled the news

Examples of capsule in a Sentence

newscasts that capsule complex, important stories into one-minute bits for easy digestion by viewers

Word History

First Known Use

1859, in the meaning defined at sense 1

Time Traveler
The first known use of capsule was in 1859

Browse Nearby Words

Cite this Entry

“Capsule.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/capsule. Accessed 10 Jun. 2026.

Kids Definition

capsule

1 of 2 noun
cap·​sule ˈkap-səl How to pronounce capsule (audio)
-(ˌ)sül
1
: a surrounding cover of a bodily part (as a knee joint)
2
: a case bearing spores or seeds
3
: a shell usually of gelatin that is used for packaging something (as a drug)
also : such a shell together with its contents
4
: an envelope of carbohydrate around a microbe and especially a bacterium
5
: a small compartment with nearly normal atmospheric pressure for a pilot or astronaut
especially : spacecraft

capsule

2 of 2 adjective
: very brief
capsule movie reviews

Medical Definition

capsule

noun
1
a
: a membrane or saclike structure enclosing a part or organ
the capsule of the kidney
b
: either of two layers or laminae of white matter in the cerebrum:
(1)
: a layer that consists largely of fibers passing to and from the cerebral cortex and that lies internal to the lentiform nucleus

called also internal capsule

(2)
: one that lies between the lentiform nucleus and the claustrum

called also external capsule

2
: a shell usually of gelatin for packaging something (as a drug or vitamins)
also : a usually medicinal or nutritional preparation for oral use consisting of the shell and its contents
3
: a viscous or gelatinous often polysaccharide envelope surrounding certain microscopic organisms (as the pneumococcus)

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