joined or packed together; closely and firmly united; dense; solid:
arranged within a relatively small space:
a compact shopping center; a compact kitchen.
designed to be small in size and economical in operation.
solidly or firmly built:
the compact body of a lightweight wrestler.
expressed concisely; pithy; terse; not diffuse:
a compact review of the week's news.
composed or made (usually followed by of):
a book compact of form and content.
Also, bicompact. Mathematics. (of a set) having the property that in any collection of open sets whose union contains the given set there exists a finite number of open sets whose union contains the given set; having the property that every open cover has a finite subcover.
verb (used with object)
to join or pack closely together; consolidate; condense.
to make firm or stable.
to form or make by close union or conjunction; make up or compose.
Metallurgy. to compress (metallic or metallic and nonmetallic powders) in a die to be sintered.
to crush into compact form for convenient disposal or for storage until disposal:
to compact rubbish.
a small case containing a mirror, face powder, a puff, and sometimes rouge.
Also called compact car. an automobile that is smaller than an intermediate but larger than a subcompact and generally has a combined passenger and luggage volume of 100–110 cu. ft. (2.8–3.1 m 3).
Metallurgy. (in powder metallurgy) an object to be sintered formed of metallic or of metallic and nonmetallic powders compressed in a die.
1375-1425;late Middle English < Latincompāctus (past participle of compingere to shut away, bind together), equivalent to com-com- + pag-, variant stem of pangere to fix, arrange (akin to pāxpeace; cf. pact, compact2) + -tus past participle suffix
denoting a tabloid-sized version of a newspaper that has traditionally been published in broadsheet form
(logic) (of a relation) having the property that for any pair of elements such that a is related to b, there is some element c such that a is related to c and c to b, as less than on the rational numbers
(US & Canadian) (of a car) small and economical
verb (transitive) (kəmˈpækt)
to pack or join closely together; compress; condense
(foll by of) to create or form by pressing together sediment compacted of three types of clay
(metallurgy) to compress (a metal powder) to form a stable product suitable for sintering
a small flat case containing a mirror, face powder, etc, designed to be carried in a woman's handbag
(US & Canadian) a comparatively small and economical car
(metallurgy) a mass of metal prepared for sintering by cold-pressing a metal powder
a tabloid-sized version of a newspaper that has traditionally been publis hed in broadsheet form
late 14c., from L. compactus "concentrated," pp. of compingere "to fasten together," from com- "with, together" + pangere "to fix, fasten." The noun meaning "make-up case" first recorded 1921, based on its containing compacted face powder; compact car is 1960. Compact disc is from 1979.
"agreement," 1591, from L. compactum, pp. of compacisci "come to agreement," from com- "together" + pacisci "to covenant, contract" (see pact).