Merriam-Webster's Collegiate Dictionary
su·per·sede
\\ˌsü-pər-ˈsēd\\ transitive verb
(-sed·ed ; -sed·ing) ETYMOLOGY Middle English (Scots) superceden to defer, from Middle French, from Latin supersedēre to sit on top, refrain from, from super- + sedēre to sit — more at sit
DATE 1654
1.
a. to cause to be set aside
b. to force out of use as inferior2. to take the place, room, or position of3. to displace in favor of another : supplant
Synonyms: see replace
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su·per·sed·er noun supersede
mid-15c., Scottish, "postpone, defer," from M.Fr. superceder "desist, delay, defer," from L. supersedere "sit on top of, stay clear of, abstain from, forbear, refrain from," from super "above" (see super-) + sedere "to sit" (see sedentary). In Scottish law, a judicial order protecting a debtor. Meaning "displace, replace" first recorded 1640s.
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
supersede
super·sede / 7su:pE5si:d; 7sju:-; NAmE 7su:pEr5s- / verb [VN]
[often passive] to take the place of sth / sb that is considered to be old-fashioned or no longer the best available
取代,替代(已非最佳选择或已过时的事物):
The theory has been superseded by more recent research.
这一理论已为新近的研究所取代。
Webster's Third New International Dictionary, Unabridged
su·per·sedeverbor su·per·cede \|süpə(r)|sēd\
(
-ed/-ing/-s)
Etymology: Middle French
superseder to refrain from, postpone, from Latin
supersedēre to sit above, be superior to, forbear, refrain from, from
super- + sedēre to sit — more at
sit
transitive verb1. law
a. : postpone
,
defer
b. : to fail to proceed with
: discontinue
c. obsolete : to refrain from
: omit
,
forbear
d. : to suspend the operation (of a judgment or order) by means of a supersedeas
2. obsolete : to omit mention of
3.
a. : to make obsolete, inferior, or outmoded
< the lapse of time has superseded his astronomical system — Benjamin Farrington >
b. : to make void
: annul
,
override
< established the principle that the welfare of a child superseded judgments rendered by the courts — Current Biography >
c. : to make superfluous or unnecessary
< this brief account … is intended to supersede the necessity of a long and minute detail — Jane Austen >4. : to take the place of and outmode by superiority
: supplant and make inferior by better or more efficiently serving a function
< the automobile began to supersede the horse — American Guide Series: Minnesota >
< the canal never paid … because railroads soon superseded it — Samuel Van Valkenburg & Ellsworth Huntington >5.
a. : to cause to be supplanted in a position or function
< in course of time this organization would have to be superseded by another — Shlomo Katz >
b. : to succeed to the position, office, or function of
: take the place of
< the department … superseded the geologic and economic survey — American Guide Series: North Carolina >
< supersede another as chairman >6. : to follow after in the course of time
< as truth prevails over error … goodness tends to supersede badness — Samuel Alexander >7. : to take precedence over
< the movement for adjournment supersedes the bill under discussion >intransitive verb: to defer action
: forbear
< supersede to name the many other difficulties — F.W.Newman >