[1] : The Collaborative International Dictionary of English v.0.48

complement \com"plement\, n. l. complementun: cf. f.
   compl'ement. see complete, v. t., and cf. compliment.
   1. that which fills up or completes; the quantity or number
      required to fill a thing or make it complete.
      1913 webster

   2. that which is required to supply a deficiency, or to
      complete a symmetrical whole.
      1913 webster

            history is the complement of poetry.  --sir j.
                                                  stephen.
      1913 webster

   3. full quantity, number, or amount; a complete set;
      completeness.
      1913 webster

            to exceed his complement and number appointed him
            which was one hundred and twenty persons. --hakluyt.
      1913 webster

   4. math. a second quantity added to a given quantity to
      make it equal to a third given quantity.
      1913 webster

   5. something added for ornamentation; an accessory. obs.
      1913 webster

            without vain art or curious complements. --spenser.
      1913 webster

   6. naut. the whole working force of a vessel.
      1913 webster

   7. mus. the interval wanting to complete the octave; -- the
      fourth is the complement of the fifth, the sixth of the
      third.
      1913 webster

   8. a compliment. obs. --shak.
      1913 webster

   arithmetical compliment of a logarithm. see under
      logarithm.

   arithmetical complement of a number math., the difference
      between that number and the next higher power of 10; as, 4
      is the complement of 6, and 16 of 84.

   complement of an arc or complement of an angle geom.,
      the difference between that arc or angle and 90deg.

   complement of a parallelogram. math. see gnomon.

   in her complement her., said of the moon when represented
      as full.
      1913 webster
see also:
complete compliment arithmetical compliment of a logarithm logarithm arithmetical complement of a number complement of an arc 
complement of an angle complement of a parallelogram gnomon in her complement 

[2] : The Collaborative International Dictionary of English v.0.48

complement \com"plement\, v. t.
   1. to supply a lack; to supplement. r.
      1913 webster

   2. to compliment. obs. --jer. taylor.
      1913 webster

[3] : WordNet (r) 2.0

complement
     n 1: a word or phrase used to complete a grammatical construction
     2: a complete number or quantity; "a full complement"
     3: number needed to make up whole force; "a full complement of
        workers" syn: full complement
     4: something added to complete or make perfect; "a fine wine is
        a perfect complement to the dinner"
     5: one of a series of enzymes in the blood serum that are part
        of the immune response
     6: either of two parts that mutually complete each other
     v : make complete or perfect; supply what is wanting or form the
         complement to; "i need some pepper to complement the
         sweet touch in the soup"
see also:
full complement 

[4] : Moby Thesaurus II by Grady Ward, 1.0

267 moby thesaurus words for "complement":
   a to z, a to izzard, ic analysis, accession, accessory,
   accompaniment, add to, addenda, addendum, additament, addition,
   additive, additory, additum, adjunct, adjuvant, age group,
   aggregate, all, all and sundry, allowance, ally, alpha and omega,
   alter ego, analogon, analogue, annex, annexation, answer,
   answer to, appanage, appendage, appendant, appositive,
   appurtenance, appurtenant, assemblage, associate, attachment,
   attribute, attributive, augment, augmentation, bakehead, band,
   battalion, be-all, be-all and end-all, beginning and end, bellyful,
   bevy, black gang, body, boilerman, brigade, brother, bumper, bunch,
   bungs, cabal, cabin boy, capacity, cast, charge, chips, clique,
   close copy, close match, coda, coequal, cognate, cohort,
   commissary steward, companion, company, complete, completion,
   concomitant, confirmation, congenator, congener,
   construction modifier, consummation, contingent, continuation,
   coordinate, corollary, corps, correlate, correlative, correspond,
   correspond to, correspondent, coterie, counterpart, covey, cram,
   crew, crowd, crush, cutting, deckhand, deckie, deep structure,
   detachment, detail, direct object, division, each and every, eight,
   eleven, enhance, enhancement, enrichment, equivalent, everything,
   extension, extrapolation, faction, fellow, fill, filler, fireman,
   first string, first team, five, fixture, fleet, form-function unit,
   full house, full measure, function, gang, group, grouping,
   groupment, gun loader, gunner, hand, hospital steward, image,
   immediate constituent analysis, in-group, increase, increment,
   indirect object, jam up, junta, kindred spirit, lading,
   landing signalman, length and breadth, levels, like, likeness,
   load, mail orderly, makeweight, mate, mob, modifier, mouthful,
   movement, navigator, near duplicate, nine, object, obverse,
   offshoot, oiler, one and all, out-group, outfit, pack, package,
   package deal, parallel, party, peer group, pendant, perfect,
   perfection, phalanx, phrase structure, picture, platoon, posse,
   predicate, purser, qualifier, quorum, quota, radio operator, ranks,
   reciprocal, reciprocate, regiment, reinforcement, reserves,
   respond to, round out, roustabout, rowing crew, salon, second self,
   second string, second team, set, set off, shallow structure,
   side effect, side issue, similitude, simulacrum, sister, skinful,
   slot, slot and filler, snip, snips, snootful, soul mate, sparks,
   squad, stable, steward, stewardess, stoker, strata, string,
   structure, subject, such, suchlike, supplement, surface structure,
   syntactic analysis, syntactic structure, syntactics, syntax,
   tagmeme, tailpiece, tally, team, the corpus, the ensemble,
   the entirety, the like of, the likes of, the lot, the whole,
   the whole range, third string, top off, torpedoman, tribe, troop,
   troupe, twin, undergirding, underlying structure, varsity, watch,
   wing, word arrangement, word order, yeoman

[5] : The Free On-line Dictionary of Computing (27 SEP 03)

complement
     
         the other value or values in the set of possible
        values.
     
        see logical complement, bitwise complement, set
        complement.
     
        1995-01-24
     
     
see also:
logical complement bitwise complement set complement 

Complement >> C Words
Complement, definition of term: Complement
complement_pag1.html

Twos Complement >> T Words
Twos Complement, definition of term: Twos Complement
twos+complement_pag1.html

Ones Complement >> O Words
Ones Complement, definition of term: Ones Complement
ones+complement_pag1.html