Alternative form of pit adder

(music) The practice of enlarging and revising the orchestration of an earlier work, usually a Baroque piece, to accommodate the larger contemporary orchestras and tastes of the time.

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

(chemistry) A calibration technique for quantification that involves adding known amounts of a substance to an aliquot of an analyte.

Dependency on drugs, especially which are illegal or improperly procured.

Muddled in thought or mind; foolish; stupid.

(phonology) Near the teeth.

(obsolete) indebted

simple past tense and past participle of add on

plural of additive function