| AIRPROOFED | • airproofed adj. That has been made airtight. • AIRPROOF v. to make impermeable to air. |
| DROPFORGED | • drop-forged adj. A workpiece that has been treated with drop forging. • DROPFORGE v. to forge metal between two dies. |
| DROPFORGES | • DROPFORGE v. to forge metal between two dies. |
| DROPPERFUL | • dropperful n. Enough to fill a dropper. • DROPPERFUL n. the contents of a dropper. |
| FERROTYPED | • ferrotyped v. Simple past tense and past participle of ferrotype. • FERROTYPE v. to take a photograph by ferrotype. |
| PERFORATED | • perforated adj. Pierced with holes. • perforated v. Simple past tense and past participle of perforate. • PERFORATE v. to bore through or into. |
| PREFIGURED | • prefigured v. Simple past tense and past participle of prefigure. • PREFIGURE v. to imagine beforehand; to foreshadow. |
| PREFRANKED | • prefranked adj. Of mail, an envelope, etc.: franked in advance. • PREFRANK v. to frank beforehand. |
| PROFOUNDER | • profounder adj. Comparative form of profound: more profound. • PROFOUND adj. very deep. |
| PROOFREADS | • proofreads v. Third-person singular simple present indicative form of proofread. • proof-reads v. Third-person singular simple present indicative form of proof-read. • PROOFREAD v. to read checking for mistakes. |
| REPURIFIED | • repurified v. Simple past tense and past participle of repurify. • REPURIFY v. to purify again. |
| SWORDPROOF | • swordproof adj. Resistant to blows of a sword. • SWORDPROOF adj. proof against swords. |
| UNDERPROOF | • underproof adj. Having a lower alcohol content than proof spirit. • underproof v. (Baking) To proof insufficiently. • UNDERPROOF adj. containing less alcohol than proof spirit. |