| PIRIFORM | • piriform adj. Alternative form of pyriform. • piriform n. Alternative form of pyriform. • PIRIFORM adj. pear-shaped, also PYRIFORM. |
| VIPERIFORM | • VIPERIFORM adj. shaped like a snake or viper. |
| REPTILIFORM | • reptiliform adj. Resembling or relating to reptiles. • REPTILIFORM adj. having the form of a reptile. |
| SPIRALIFORM | • spiraliform adj. Spiral-shaped. • SPIRALIFORM adj. shaped like a spiral. |
| PREAMPLIFIER | • preamplifier n. A voltage amplifier for amplifying a low-level input signal; its output is the input to a higher-level amplifier. • PREAMPLIFIER n. an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits. |
| PREINFORMING | • PREINFORM v. to inform in advance. |
| IMPERFORATION | • imperforation n. The state of being without perforation. • imperforation n. (Medicine) Absence of perforation in a normally patent structure. • IMPERFORATION n. the state of being imperforate. |
| PREAMPLIFIERS | • preamplifiers n. Plural of preamplifier. • PREAMPLIFIER n. an amplifier designed to amplify extremely weak electrical signals before they are fed to additional amplifier circuits. |
| IMPERFORATIONS | • IMPERFORATION n. the state of being imperforate. |
| PERFORMABILITY | • performability n. A measurement of how well a system performs over a period of time, regardless of the presence of faults. • PERFORMABILITY n. the state of being performable. |
| PREFERENTIALISM | • PREFERENTIALISM n. favouring a preferential tariff. |
| PREFORMATIONISM | • preformationism n. (Biology) the theory that all organisms start their existence already in a predetermined form upon conception… • PREFORMATIONISM n. the now exploded theory that the plant or animal (and therefore all its descendants) is already preformed in the germ. |
| PREFORMATIONIST | • preformationist n. (Biology, historical) A proponent of the theory of preformationism. • PREFORMATIONIST adj. relating to preformation. |