cadmium sulphide when used as a pigment

(biochemistry) Any of a class of photoreceptor proteins present in the cones of the retina

(organic chemistry) A pentacyclic triterpenoid (1R,3aR,5aR,5bR,7aR,11R,11aR,11bS,13aR,13bR)-11-hydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecah...

plural of horsemanship