| COLORFASTNESS | • colorfastness n. The characteristic of being colorfast. • COLORFAST n. having colours that retain their original hue without running or fading, also COLOURFAST. |
| FOSSILISATION | • fossilisation n. Britain standard spelling of fossilization. • FOSSILISATION n. the process of fossilising, also FOSSILIZATION. |
| ISOLATIONISMS | • isolationisms n. Plural of isolationism. • ISOLATIONISM n. a policy of national isolation by abstention from alliances and other international political and economic relations. |
| ISOLATIONISTS | • isolationists n. Plural of isolationist. • ISOLATIONIST n. a believer in isolationism. |
| LOATHSOMENESS | • loathsomeness n. (Uncountable) The nature or property that gives rise to revulsion or inspires loathing. • loathsomeness n. (Countable) A loathsome thing. • LOATHSOME n. abhorrent, also LOTHSOME. |
| NONSOCIALISTS | • nonsocialists n. Plural of nonsocialist. • NONSOCIALIST n. one who is not a socialist. |
| SELENOLOGISTS | • selenologists n. Plural of selenologist. • SELENOLOGIST n. one who studies the moon. |
| SIPHONOSTELES | • siphonosteles n. Plural of siphonostele. • SIPHONOSTELE n. the cylinder of conducting tissue surrounding a central core of pith in certain stems. |
| SNOLLYGOSTERS | • snollygosters n. Plural of snollygoster. • SNOLLYGOSTER n. a shrewd unprincipled person, esp. a dishonest politician. |
| SNOWMOBILISTS | • snowmobilists n. Plural of snowmobilist. • SNOWMOBILIST n. one who engages in the sport of snowmobiling. |
| SOLARISATIONS | • solarisations n. Plural of solarisation. • SOLARISATION n. the reversal of an image by overexposure, also SOLARIZATION. |
| SOLONISATIONS | • SOLONISATION n. the process by which a solonetz is formed, also SOLONIZATION. |
| SOMNILOQUISTS | • somniloquists n. Plural of somniloquist. • SOMNILOQUIST n. one who talks in his sleep. |
| SPONGIOBLASTS | • spongioblasts n. Plural of spongioblast. • SPONGIOBLAST n. any of numerous columnar epithelial cells in the brain and spinal cord that develop into neuroglia. |
| SPONGOLOGISTS | • spongologists n. Plural of spongologist. • SPONGOLOGIST n. one who studies sponges. |
| STREPTOSOLENS | • STREPTOSOLEN n. an evergreen solanaceous flowering shrub of the genus Streptosolen, with panicles of tubular orange flowers. |
| SYNECOLOGISTS | • synecologists n. Plural of synecologist. • SYNECOLOGIST n. a specialist in synecology. |
| TROUBLOUSNESS | • troublousness n. The quality of being troublous. • TROUBLOUSNESS n. the state of being troublous. |
| TWOFOLDNESSES | • TWOFOLDNESS n. the state of being twofold. |