A herding water dog originating in Spain.

(mathematical analysis) a curve whose range contains the entire 2-dimensional unit square (or the 3-dimensional unit cube)

The mainland coast of Spanish America.

A dish of spaghetti with a Bolognese sauce.

A method of determining the general classification of ferrous materials that normally requires taking a piece of metal, usually scrap, to a grinding wheel and observing the sparks emitted.

present participle of spark test

Early form of the Spanish language that was spoken on the Iberian Peninsula from the 10th century until roughly the beginning of the 15th century, before a consonantic readjustment gave rise to the evolution of Modern Spanish.

(US, humorous) Uh-oh.

A sparrow (Artemisiospiza belli) that usually inhabits sagebrush land in the western United States.

Alternative spelling of breathing space