joined or packed together; closely and firmly united; dense; solid: compact soil.
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 fol. by of&hasp;): a book compact of form and content.
(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.
—v.t.
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.
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.
—n.
a small case containing a mirror, face powder, a puff, and sometimes rouge.
Also calledan 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).
(in powder metallurgy) an object to be sintered formed of metallic or of metallic and nonmetallic powders compressed in a die.