| DESULPHURS | • desulphurs v. Third-person singular simple present indicative form of desulphur. • DESULPHUR v. to remove sulphur from, also DESULFUR. |
| DISHUMOURS | • dishumours v. Third-person singular simple present indicative form of dishumour. • DISHUMOUR v. (obsolete) to put out of humour. |
| DURICRUSTS | • duricrusts n. Plural of duricrust. • DURICRUST n. gravel, sand, or desert debris cemented by calcium carbonate, an accumulated product of chemical weathering in a dry climate. |
| SOURDOUGHS | • sourdoughs n. Plural of sourdough. • sour-doughs n. Plural of sour-dough. • sour␣doughs n. Plural of sour dough. |
| STRIDULOUS | • stridulous adj. Emitting a particularly harsh or shrill sound. • stridulous adj. (Pathology) Relating to stridor. • STRIDULOUS adj. squeaky. |
| SULFURISED | • sulfurised v. Simple past tense and past participle of sulfurise. • sulfurised adj. Alternative spelling of sulfurized. • SULFURISE v. to combine or impregnate with sulphur or any of its compounds, also SULFURIZE, SULPHURISE, SULPHURIZE. |
| SUPERFUNDS | • superfunds n. Plural of superfund. • superfunds v. Third-person singular simple present indicative form of superfund. • Superfunds n. Plural of Superfund. |
| SUPERFUSED | • superfused v. Simple past tense and past participle of superfuse. • superfused adj. (Medicine) Subjected to superfusion. • SUPERFUSE v. to pour over. |
| SUPERSOUND | • supersound n. Ultrasonic sound. • SUPERSOUND n. sound vibrations too rapid to be audible. |
| SUPERSTUDS | • superstuds n. Plural of superstud. • SUPERSTUD n. an exceptionally virile male. |
| SURPLUSSED | • surplussed v. Simple past tense and past participle of surplus. • SURPLUS v. to be in excess. |
| SURQUEDIES | • SURQUEDY n. (obsolete) arrogance; haughty pride, also SURQUEDRY. |
| SUSURRATED | • susurrated v. Simple past tense and past participle of susurrate. • SUSURRATE v. to whisper. |
| UNDESIROUS | • undesirous adj. Not desirous. • UNDESIROUS adj. not desirous. |
| UNINSUREDS | • uninsureds n. Plural of uninsured. • UNINSURED n. one who is not insured. |
| UNSURMISED | • unsurmised adj. Not surmised. • UNSURMISED adj. not surmised. |
| UREDOSORUS | • UREDOSORUS n. a pustule producing and containing uredospores. |