词根词缀：sed-, sedat-, -sid, -sess

【来源及含义】Latin: sit, sitting

【同源单词】assess, assessable, assessment, assessor, assessorial, assiduity

词根词缀：seismo-, seism-, -seism, -seisms, -seisma, -seismically, -seismical, -seismal, -seismic

【来源及含义】Greek: to move back and forth; to shake, to move violently; earthquake

【相关词根词缀】Related "move, motion" word units: cine-; kine-; mobil-; mot-, mov-; oscillo-; vibro-.

【同源单词】aseism, asteroseismologist, asteroseismology, baroseismic, baryseisma, bathyseism

词根词缀：seleno-, selen-

【来源及含义】Greek: moon

【相关词根词缀】 A cross reference of word units that are related, directly or indirectly, to the: "moon": Calendar, Moon Facts; Chemical Element: selenium; Gods and Goddesses; luna, luni-; Luna, the earth moon; menisc-; meno-; Planets in Motion; plano-.

【同源单词】aposelene, geoselenic, paraselene, periselene, selene, Selene

词根词缀：semeio-, sema-, semato-, semat-, semasio-, semio-, -semic, -semia

【来源及含义】Greek: signal, signals; sign, signs; mark, marks; symbol, symbols

【同源单词】allosematic, aposematic, asemantic, asemasia, asemia, asemic

词根词缀：semen, semin-

【来源及含义】Latin: seed

【同源单词】disseminate, dissemination, inseminate, insemination, semen, seminal

词根词缀：semi-

【来源及含义】Latin: half, partly, twice

【同源单词】semi-acid, semi-amplexicaul, semiannual, semiannually, semiaquatic, semiarid

词根词缀：sen-, sene-, seni-, sir-

【来源及含义】Latin: old age, old, elder, elderly

【相关词根词缀】 Related "old; old age, elder" units: gero-; obsolesc-; presbyo-; veter-.

【同源单词】insenescence, insenescent, premature senility, psychosis of senility, seignior, seigniorage

词根词缀：senso-, sens-, sensi-, sensori-, sent-

【来源及含义】Latin: feeling, perception through physical awareness; to discern or detect by touch, smell, taste, sight, hearing, etc.

【相关描述】The words in this list refer either to physical or mental perceptions, or a combination of both of them.

【相关词根词缀】 Related-word units meaning feeling: aesth-; pass-, pati-; patho-.

【同源单词】abnormal sensation, aftersensation, assent, assent, assentation, assenter

词根词缀：sepsi-, sep-, septi-, septico-, septo-, -sepsis, -septic, -septicemia, -septicemic

【来源及含义】Greek: decay, rot, putrefactive

【相关词根词缀】 Word families with similar applications about: "decay, rotten; wasting away; putrid, pus" word units: phthisio- (decay, waste away); puro- (pus); pus (viscous fluid via an infection); pustu- (blister, pimple); putre- (rotten, decayed); pyo- (pus; purulent); sapro- (rotten, putrid, putrefaction, decay); suppurant- (festering, forming or discharging pus); tabe- (wasting away, decaying).

【同源单词】antisepsis, antiseptic, antiseptic, asepsis, aseptic, asepticism

词根词缀：sept-, septi-, septo-

【来源及含义】Latin: a partition; a dividing wall between two spaces, tissues, or cavities; from saepire "to enclose, to hedge in", and from saepes, "fence, hedge"

【同源单词】atrioseptoplasty, atrioseptostomy, lingual septum, septal, septal defect, septarian