A muscle in the back of the thigh; the most medial of the three hamstring muscles (meaning it is more to the inner of the thighs, not between the two others in one leg, which is the semitendinosus).

semimembranousadj

Partially membranous.

semimenstrualadj

half-monthly

semimeridiannoun

The intersection of a surface of revolution and a half-plane through its centre

semimessianicadj

Somewhat or partly messianic.

semimetalnoun

A solid of which the conduction and valence band overlap slightly in energy.

semimetallicadj

Of or pertaining to a semimetal.

semimetallicitynoun

The condition of being semimetallic

semimetamorphosisnoun

Partial metamorphosis.

semimetricnoun

A metric that does not satisfy the triangle inequality

semimetricsnoun

plural of semimetric

semimicroadj

Intermediate in size between micro and macro

semimilitaryadj

Characteristic of the military, but not strictly suitable for it as such.

semimineralizedadj

Somewhat or partly mineralized.

semiminimnoun

A quarter note, or crotchet.

semiminoradj

Describing each of the two segments of the minor axis of a conic section at both sides of the center of the conic section.

semiminor axisnoun

Half of the minor axis of a circle or ellipse.

semimobileadj

Having limited mobility.

semimodaladj

Having only some of the characteristics of the major modal verbs.

semimodernadj

Somewhat or partly modern.

semimodularadj

Relating to a semimodule.

semimodulenoun

A mathematical construct that resembles a module, except that the underlying abelian group is replaced with an abelian semigroup, so the elements do not necessarily have inverses.

semimoistadj

Partly or somewhat moist.

semimoltenadj

Partly or somewhat molten.

semimonasticadj

Having certain monastic aspects.

semimonocoquenoun

Alternative form of semi-monocoque.

semimonopolynoun

A situation that is almost a monopoly.

semimonsternoun

A somewhat or partly monstrous creature.

semimonstrousadj

Somewhat or partly monstrous.

semimonthlyadj

Occurring twice a month or at half month intervals.

semimotorizedadj

partially motorized

semimucousadj

Somewhat or partly mucous.

semimuffle furnacenoun

A furnace in which the flame does not come into contact with the material being heated but products of the combustion gases do

semimuteadj

Having the faculty of speech either imperfectly developed or partially lost.

semimysticadj

Somewhat or partially mystic.

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 243. 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.