Any of several tropical American plants, of the genus Capsicum, principally the species Capsicum annuum and Capsicum frutescens, that are cultivated as edible peppers.

(organic chemistry) A di-hydroxy, keto carotenoid, which, together with capsorubin, constitutes the red pigment of paprika.

A vehicle (or a compartment of a vehicle) designed to transport, and provide life support for people in space, and during reentry through the Earth's atmosphere

Any of the stones making up the top layer of a wall; a coping stone. / (figuratively) A crowning achievement, culmination or finishing touch.

(transitive) To complete as a crowning achievement; to top off. / (transitive, US, military, informal) To train in the Capstone Military Leadership Program.

(archaeology) of or pertaining to a Paleolithic culture of North Africa (named after primary findings there, in the now southern Tunisian oasis Gafsa) and southern Europe

(nautical) An extra capstan usually placed between the foremast and mainmast.

Of, pertaining to, or resembling a capsule.

(organic chemistry) Any of a class of irritant compounds, related to capsaicin, that are responsible for the heat of chilli peppers.

plural of capsid