(pharmacology) A brand name for a psychostimulant combination drug containing four salts of amphetamine, used in the treatment of conditions such as ADHD and narcolepsy and often misused as a recreational drug.

plural of addendum

Alternative form of puffadder

A surname transferred from the given name.

(sports) Stoppage time.

Any of various venomous snakes of the family Crotalinae, found in Asia and the Americas, with a deep pit or groove on either side of the head which enables them to detect prey by infrared sensing; a pit viper.

plural of pit adder

Alternative form of pit adder

plural of sea adder

The European fifteen-spined stickleback (Spinachia spinachia, syn. Gasterosteus spinachia). / The tanglefish, or greater pipefish (Syngnathus acus).