(chemistry) Abbreviation of phencyclidine. / (organic chemistry) Abbreviation of pentachlorophenol. / (biochemistry) Initialism of peptidyl carrier protein.

(organic chemistry) The xanthophyll (1R,2R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4R)-4-hydroxy-2,6,6-trimethylcyclohexen-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,3,...

plural of buffing

(zoology) The hard, triangular apex of a graptolite from which it grows.