What is Capsule?

Capsule definition and meaning on Dictionary terms:
Pharmacology. a gelatinous case enclosing a dose of medicine.
Biology. a membranous sac or integument.either of two strata of white matter in the cerebrum.the sporangium of various spore-producing organisms, as ferns, mosses, algae, and fungi.

Botany. a dry dehiscent fruit, composed of two or more carpels.
a small case, envelope, or covering.
Also called space capsule. Aerospace. a sealed cabin, container, or vehicle in which a person or animal can ride in flight in space or at very high altitudes within the earth’s atmosphere.
Aviation. a similar cabin in a military aircraft, which can be ejected from the aircraft in an emergency.
a thin metal covering for the mouth of a corked bottle.
a concise report; brief outline: An appendix to the book contains biographical capsules of the contributors.

verb (used with object), cap