A heart valve with three cusps which prevents backflow of blood from the right ventricle into the right atrium.

(pathology) Coccidioidomycosis, a mammalian fungal disease caused by Coccidioides immitis or Coccidioides posadasii.

(Norse mythology) The home of half of all warriors who died gloriously in battle as well as many of the Æsir.

(by extension) An abode of the gods or afterlife in general.

(mathematical analysis, of a function) Having only real values: having as its codomain the set of real numbers or a subset thereof.

A speech made when leaving or parting company. / The act of parting company. / A word or phrase (such as adieu or farewell) said upon leaving. / A word or phrase used to end a letter or message.

thermal transmittance or thermal conductance

(medicine) A mosquito-borne, acute, febrile, viral disease of humans and animals, caused by an RNA virus of the genus Phlebovirus, which occurs in northern and eastern Africa.

(geology) A graben structure between two tectonic plates which are opening relative to each other. / (geology) A mid-oceanic ridge system with central valleys.

Having or displaying valour.