| AIRPROOFING | • airproofing v. Present participle of airproof. • AIRPROOF v. to make impermeable to air. |
| IMPERFORATE | • imperforate adj. Not perforated, as… • imperforate n. (Philately) A postage stamp that has not been perforated. • IMPERFORATE adj. not perforated into perforated rows, used of stamps and sheets of stamps, also IMPERFORATED. |
| PANDURIFORM | • panduriform adj. (Botany, rare) Pandurate. • PANDURIFORM adj. fiddle-shaped, e.g. of leaves, also PANDURATE, PANDURATED. |
| PASSERIFORM | • passeriform adj. Of or pertaining to a sparrow; sparrow-like; bird-like. • passeriform n. Any bird of the order Passeriformes. • PASSERIFORM adj. having the form of a perching bird. |
| PERFORATING | • perforating v. Present participle of perforate. • PERFORATE v. to bore through or into. |
| PERFORATION | • perforation n. The act of perforating or the state of being perforated. • perforation n. Any opening in a solid object. • perforation n. (Medicine) An abnormal opening in an organ, such as a rupture. |
| PERFORATIVE | • perforative adj. Having power to perforate or pierce. • PERFORATIVE adj. causing perforation, also PERFORATORY. |
| PREFATORIAL | • prefatorial adj. Prefatory. • PREFATORIAL adj. serving as preface or opening remarks. |
| PREFATORILY | • prefatorily adv. In a prefatory manner; by way of preface. • PREFATORY adv. acting as a preface. |
| PROLIFERATE | • proliferate v. (Transitive, intransitive) To increase in number or spread rapidly; to multiply. • PROLIFERATE v. to grow or increase in number rapidly. |
| PURIFICATOR | • purificator n. One who, or that which, purifies; a purifier. • purificator n. (Christianity) The napkin used to wipe the lip of the chalice during Holy Communion. • PURIFICATOR n. a cloth used to wipe the Eucharist chalice. |
| RAINPROOFED | • rainproofed v. Simple past tense and past participle of rainproof. • RAINPROOF v. to make proof against rain. |
| SCALPRIFORM | • scalpriform adj. (Anatomy) Shaped like a chisel. • SCALPRIFORM adj. shaped like a chisel. |
| SPIRALIFORM | • spiraliform adj. Spiral-shaped. • SPIRALIFORM adj. shaped like a spiral. |
| TRAPEZIFORM | • trapeziform adj. Shaped like a trapezium. • TRAPEZIFORM adj. in the form of a trapezoid quadrilateral with no sides parallel. |