| CHIRRUPING | • chirruping v. Present participle of chirrup. • chirruping n. The act of producing a chirrup sound. • CHIRRUP v. to chirp repeatedly. |
| ENCIPHERER | • encipherer n. One who enciphers. • ENCIPHERER n. one who enciphers. |
| HAIRSPRING | • hairspring n. A spring, made of a coil of fine wire, that is used to regulate the movement of a balance wheel in a watch. • HAIRSPRING n. the slender recoil spring which regulates the motion of the balance in a timepiece. |
| ORPHARIONS | • orpharions n. Plural of orpharion. • ORPHARION n. a large lute-like stringed instrument with six to nine metal strings, also ORPHEOREON. |
| PERMETHRIN | • permethrin n. A synthetic insecticide, C21H20Cl2O3, used to treat head lice, nits, scabies, and in flea collars. • PERMETHRIN n. a garden pesticide. |
| PORPHYRINS | • porphyrins n. Plural of porphyrin. • PORPHYRIN n. any of a large group of red or purple crystalline pigments present in plant and animal tissues. |
| PRESHRINKS | • preshrinks v. Third-person singular simple present indicative form of preshrink. • PRESHRINK v. to shrink in advance. |
| PRONEPHRIC | • pronephric adj. Of or pertaining to the pronephros. • PRONEPHRIC adj. of or pertaining to the pronephros. |
| PRONEPHROI | • pronephroi n. Plural of pronephros. • PRONEPHROS n. a primitive kidney that disappears early in embryonic development. |
| PYRETHRINS | • pyrethrins n. Plural of pyrethrin. • PYRETHRIN n. either of two insecticidal oily esters prepared from pyrethrum flowers. |
| PYRRHOTINE | • pyrrhotine n. (Mineralogy) pyrrhotite. • PYRRHOTINE n. magnetic pyrites, an iron sulphide, often containing nickel, also PYRRHOTITE. |
| RANGERSHIP | • rangership n. The role or status of keeper of a forest or park. • RANGERSHIP n. the office of the keeper of a forest or park. |
| REPHRASING | • rephrasing v. Present participle of rephrase. • rephrasing n. Something differently phrased. • REPHRASING n. the act of phrasing again. |
| TREPHINERS | • trephiners n. Plural of trephiner. • TREPHINER n. a surgeon who uses a trephine. |