(mathematics) A binary function, written as δ with two subscripts, which evaluates to 1 when its arguments are equal, and 0 otherwise.

The plant Stillingia sylvatica.

plural of delta cell

A kind of somatostatin-producing cell found in the stomach, intestine, and islets of Langerhans in the pancreas.

(less common, telecommunications) round-trip time

plural of round-trip delay time

A dish in Chinese and Buddhist cuisine, consisting of vegetables and other vegetarian ingredients (sometimes with seafood or eggs) cooked with soy sauce.

plural of delegation language

(computing) A programming language that supports prototype-based programming.

A form of postal delivery where the sender receives a receipt of postage, and the receiver must sign upon receiving it