English Words: S
54,294 words · Page 205 of 1086
The derivative of cystamine in which both sulfur atoms have been replaced by those of selenium
A naturally-occurring amino acid, present in several enzymes, whose structure is that of cysteine but with the sulfur atom replaced by one of selenium
The science of studying and mapping the Moon's size, shape and surface topography, and its gravitational and magnetic fields.
either of two classes of compounds, formally derived from an ester by replacing an oxygen atom with selenium; either R-C(=Se)-OR' or R-C(=O)-SeR'
Any compound, of the form R-Se-R', formally derived from an ether by replacing the oxygen atom by one of selenium
Any derivative of a selenol in which a metal atom replaces the hydrogen attached to selenium RSeH => RSe⁻M⁺.
An amino acid related to methionine by the replacement of its sulfur atom by one of selenium
Spelling & Dictionary Insight
The English alphabetical index for the letter S contains 54,294 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 1,086 pages, and you are currently viewing page 205. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "S" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.