| APPRENTICESHIP | • apprenticeship n. The condition of, or the time served by, an apprentice. • apprenticeship n. The system by which a person learning a craft or trade is instructed by a master for a set time under set conditions. • APPRENTICESHIP n. the state of being an apprentice. |
| HIPPOPOTAMUSES | • hippopotamuses n. Plural of hippopotamus. • HIPPOPOTAMUS n. a large African artiodactyl ungulate of aquatic habits. |
| HYPOPHOSPHATES | • hypophosphates n. Plural of hypophosphate. • HYPOPHOSPHATE n. any salt or ester of hypophosphoric acid. |
| HYPOPHOSPHITES | • hypophosphites n. Plural of hypophosphite. • HYPOPHOSPHITE n. a salt of hypophosphorous acid. |
| PHOSPHOPROTEIN | • phosphoprotein n. (Biochemistry) any protein containing bound phosphate or complexed with a phospholipid. • PHOSPHOPROTEIN n. any of various proteins, such as casein, that contain combined phosphoric acid. |
| PRECEPTORSHIPS | • preceptorships n. Plural of preceptorship. • PRECEPTORSHIP n. the office of preceptor. |
| PROPRIETORSHIP | • proprietorship n. The state of being a proprietor; ownership. • PROPRIETORSHIP n. the office of proprietor. |
| PROTOPORPHYRIN | • protoporphyrin n. (Biochemistry) Any porphyrin that lacks a central metal ion. • PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin. |
| PYROPHOSPHATES | • pyrophosphates n. Plural of pyrophosphate. • PYROPHOSPHATE n. a salt or ester of pyrophosphoric acid. |
| PYROPHOTOGRAPH | • PYROPHOTOGRAPH n. a burnt-in photograph, e.g. on glass or porcelain. |
| SUPERPHOSPHATE | • superphosphate n. A fertilizer produced by the action of concentrated sulfuric acid on powdered phosphate rock. • superphosphate n. A phosphate containing the greatest amount of phosphoric acid that can combine with the base. • SUPERPHOSPHATE n. acid phosphate. |