The origin and development of a pathological condition (other than an illness)

plural of Stopka

(nautical, aviation) one of two or more lights fitted to a ship or aircraft, which indicate position and direction taken, especially important at night. Internationally recognised colours are red o...

(computing) An upgrade of a software application that enables it to run on a different platform. / (business) A switch from an existing subscription to one at the same price or service level.