| ALTISSIMOS | • altissimos n. Plural of altissimo. • ALTISSIMO n. the octave commencing an octave above the treble clef. |
| ATELEIOSIS | • ateleiosis n. Alternative form of ateliosis. • ATELEIOSIS n. dwarfism with disproportion. |
| DIABOLISTS | • diabolists n. Plural of diabolist. • DIABOLIST n. one who practises diabolism. |
| DIALOGISTS | • dialogists n. Plural of dialogist. • DIALOGIST n. a speaker in a dialogue. |
| IDIOBLASTS | • idioblasts n. Plural of idioblast. • IDIOBLAST n. a plant cell that differs from neighbouring cells in the same tissue. |
| ISOLATIONS | • isolations n. Plural of isolation. • ISOLATION n. the state of being apart, isolated. |
| LANOSITIES | • LANOSITY n. woolliness. |
| LEONTIASIS | • leontiasis n. A rare medical condition characterized by an overgrowth of the facial and cranial bones, leading to… • LEONTIASIS n. a kind of leprosy giving a leonine appearance to face. |
| PIANOLISTS | • pianolists n. Plural of pianolist. • PIANOLIST n. one who plays the Pianola. |
| SIALOLITHS | • sialoliths n. Plural of sialolith. • SIALOLITH n. a calculus in a salivary gland. |
| SIBILATORS | • sibilators n. Plural of sibilator. • SIBILATOR n. one who sibilates, hisses. |
| SILTATIONS | • siltations n. Plural of siltation. • SILTATION n. the process of silting. |
| SOCIALISTS | • socialists n. Plural of socialist. • Socialists n. Plural of Socialist. • SOCIALIST n. an adherent of socialism. |
| SOCIALITES | • socialites n. Plural of socialite. • SOCIALITE n. a person having a place in fashionable society. |
| SODALITIES | • sodalities n. Plural of sodality. • SODALITY n. an organized group, a fellowship. |
| SOLIDARIST | • solidarist adj. Exhibiting, or pertaining to, solidarism. • solidarist n. A proponent of solidarism. • SOLIDARIST n. one who practises solidarity. |
| SOLITAIRES | • solitaires n. Plural of solitaire. • SOLITAIRE n. a game played by one person with a board and balls, pegs, etc. |
| SOLITARIES | • solitaries n. Plural of solitary. • SOLITARY n. one who lives alone. |
| SOLSTITIAL | • solstitial adj. Pertaining to a solstice. • solstitial adj. Occurring on a solstice. • SOLSTITIAL adj. of or pertaining to a solstice. |