A Capsule

(physiology) A membranous envelope.
(botany) A type of simple, dehiscent, dry fruit (seed-case) produced by many species of flowering plants, such as poppy, lily, orchid, willow and cotton. Capsule (fruit) - Wikipedia
(botany) A sporangium, especially in bryophytes.
(anatomy) A tough, fibrous layer surrounding an organ such as the kidney or liver
(anatomy) A membrane that surrounds the eyeball.
(astronautics) A detachable part of a rocket or spacecraft (usually in the nose) containing the crew's living space. Space capsule - Wikipedia
(pharmacy) A small container containing a dose of medicine. Capsule (pharmacy) - Wikipedia
(attributively, figuratively) in a brief, condensed or compact form
(winemaking) The covering — formerly lead or tin, now often plastic — over the cork at the top of the wine bottle.
(chemistry, dated) A small clay saucer for roasting or melting samples of ores, etc.; a scorifier.
A small, shallow evaporating dish, usually of porcelain.
A small cup or shell, often of metal, for a percussion cap, cartridge, etc.
(Geometry) Capsule (geometry) - Wikipedia