| SPIRACLE | • spiracle n. A pore or opening used (especially by arthropods and some fish) for respiration. • spiracle n. The blowhole of a whale, dolphin or other similar species. • spiracle n. Any small aperture or vent for air or other fluid. |
| SPIRAEAS | • spiraeas n. Plural of spiraea. • SPIRAEA n. (Greek) any of a group of plants, including hardhack and meadowsweet, also SPIREA. |
| SPIRALED | • spiraled v. Simple past tense and past participle of spiral. • SPIRAL v. to move in spiral fashion. |
| SPIRALLY | • spirally adv. In a spiral fashion. • SPIRAL adv. winding like the thread of a screw. |
| SPIRANTS | • spirants n. Plural of spirant. • SPIRANT n. a sound produced by narrowing the air passage. |
| SPIRATED | • spirated adj. Spirally twisted. • SPIRATED adj. spirally twisted. |
| SPIRELET | • spirelet n. (Architecture) A small or slender spire. • SPIRELET n. a slender spire. |
| SPIREMES | • spiremes n. Plural of spireme. • SPIREME n. a filament forming part of a cell nucleus, also SPIREM. |
| SPIRIEST | • SPIRY adj. tall, slender and tapering. |
| SPIRILLA | • spirilla n. Plural of spirillum. • SPIRILLUM n. a rigid, spiral-shaped bacterium. |
| SPIRITED | • spirited v. Simple past tense and past participle of spirit. • spirited adj. Lively, vigorous, animated or courageous. • SPIRIT v. to carry off secretly. |
| SPIRITUS | • spiritus n. A breathing. • spiritus n. An aspirate. • spiritus n. Any spirituous preparation. |
| SPIRLING | • spirling n. (UK, dialect) sparling. • SPIRLING n. a kind of fish, aka smelt, also SPARLING, SPERLING. |
| SPIRTING | • spirting v. Present participle of spirt. • spirting n. Alternative form of spurting. • SPIRT v. to emit liquid forcibly, also SPURT. |
| SPIRTLES | • spirtles v. Third-person singular simple present indicative form of spirtle. • SPIRTLE n. a wooden stick for stirring porridge, also SPURTLE. |
| SPIRULAE | • SPIRULA n. (Latin) a spiral-shelled mollusk. |
| SPIRULAS | • spirulas n. Plural of spirula. • SPIRULA n. (Latin) a spiral-shelled mollusk. |