(set phrase) Absolute evil; that has no sense of morality or mercy at all.

(set phrase) Absolutely evil; having no sense of morality or mercy whatsoever.

(complex analysis) Of a number, having real part equal to zero.

(obsolete, chemistry) oxygen

(obsolete) Someone who collected dog faeces for sale to tanneries (which used it as a siccative for bookbinding leather). Undertaken by poor people in Britain in the 18th and 19th centuries.

Traditional country music.

Plain and unadorned.

The study of mathematical concepts independently of applications outside mathematics.

Absolutely pure; genuine, authentic.

(Canada) Of or pertaining to francophone Quebecers of "pure" French ancestry, descended from settlers in New France.