(organic chemistry) Any of several isomers of the alkene having six carbon atoms and two double bonds

(organic chemistry) Any amphoteric propionate, especially a salt of a propionic acid that has a basic substituent.

(astronomy) The brightest star in the constellation Canes Venatici; Alpha (α) Canum Venaticorum (2.90ᵐ).

(genetics) The transfer of genetic material from one organism to another one that is not its offspring; especially common among bacteria.