| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| siderographic | adjective | Alt. of Siderographical |
| significantly | adverb | In a significant manner. |
| signification | noun | The act of signifying; a making known by signs or other means., That which is signified or made known; that meaning which a sign, character, or token is intended to convey; as, the signification of words. |
| significative | adjective | Betokening or representing by an external sign., Having signification or meaning; expressive of a meaning or purpose; significant. |
| significatory | adjective | Significant., That which is significatory. |
| silicofluoric | adjective | Containing, or composed of, silicon and fluorine; especially, denoting the compounds called silicofluorides. |
| simple-minded | adjective | Artless; guileless; simple-hearted; undesigning; unsuspecting; devoid of duplicity. |
| single-acting | adjective | Having simplicity of action; especially (Mach.), acting or exerting force during strokes in one direction only; — said of a reciprocating engine, pump, etc. |
| single-handed | adjective | Having but one hand, or one workman; also, alone; unassisted. |
| single-minded | adjective | Having a single purpose; hence, artless; guileless; single-hearted. |
| singularities | plural | of Singularity |
| siphoniferous | adjective | Siphon-bearing, as the shell of the nautilus and other cephalopods. |
| siphonoglyphe | noun | A gonidium. |
| siphonophoran | adjective | Belonging to the Siphonophora., One of the Siphonophora. |
| siphunculated | adjective | Having a siphuncle. |
| sipunculoidea | noun pl. | Same as Gephyrea., In a restricted sense, same as Sipunculacea. |
| sister-in-law | noun | The sister of one’s husband or wife; also, the wife of one’s brother; sometimes, the wife of one’s husband’s or wife’s brother. |