 4 definitions found
From WordNet (r) 2.0 [wn]:
reciprocal
adjective
1: concerning each of two or more persons or things; especially
given or done in return; "reciprocal aid"; "reciprocal
trade"; "mutual respect"; "reciprocal privileges at
other clubs" [syn: {mutual}] [ant: {nonreciprocal}]
2: of or relating to or suggestive of complementation;
"interchangeable electric outlets" [syn: {complementary},
{interchangeable}]
3: of or relating to the multiplicative inverse of a quantity
or function; "the reciprocal ratio of a:b is b:a"
noun
1: something (a term or expression or concept) that has a
reciprocal relation to something else; "risk is the
reciprocal of safety"
2: (mathematics) one of a pair of numbers whose product is 1:
the reciprocal of 2/3 is 3/2; the multiplicative inverse
of 7 is 1/7 [syn: {multiplicative inverse}]
3: hybridization involving a pair of crosses that reverse the
sexes associated with each genotype [syn: {reciprocal
cross}]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Reciprocal \Re*cip"ro*cal\ (r[-e]*s[i^]p"r[-o]*kal), adjective [L.
reciprocus; of unknown origin.]
1. Recurring in vicissitude; alternate.
2. Done by each to the other; interchanging or interchanged;
given and received; due from each to each; mutual; as,
reciprocal love; reciprocal duties.
Let our reciprocal vows be remembered. --Shak.
3. Mutually interchangeable.
These two rules will render a definition reciprocal
with the thing defined. --I. Watts.
4. (Gram.) Reflexive; -- applied to pronouns and verbs, but
sometimes limited to such pronouns as express mutual
action.
5. (Math.) Used to denote different kinds of mutual relation;
often with reference to the substitution of reciprocals
for given quantities. See the Phrases below.
{Reciprocal equation} (Math.), one which remains unchanged in
form when the reciprocal of the unknown quantity is
substituted for that quantity.
{Reciprocal figures} (Geom.), two figures of the same kind
(as triangles, parallelograms, prisms, etc.), so related
that two sides of the one form the extremes of a
proportion of which the means are the two corresponding
sides of the other; in general, two figures so related
that the first corresponds in some special way to the
second, and the second corresponds in the same way to the
first.
{Reciprocal proportion} (Math.), a proportion such that, of
four terms taken in order, the first has to the second the
same ratio which the fourth has to the third, or the first
has to the second the same ratio which the reciprocal of
the third has to the reciprocal of the fourth. Thus, 2:5:
:20:8 form a reciprocal proportion, because 2:5:
:1/20:1/8.
{Reciprocal quantities} (Math.), any two quantities which
produce unity when multiplied together.
{Reciprocal ratio} (Math.), the ratio between the reciprocals
of two quantities; as, the reciprocal ratio of 4 to 9 is
that of 1/4 to [frac19].
{Reciprocal terms} (Logic), those terms which have the same
signification, and, consequently, are convertible, and may
be used for each other.
Syn: Mutual; alternate.
Usage: {Reciprocal}, {Mutual}. The distinctive idea of mutual
is, that the parties unite by interchange in the same
act; as, a mutual covenant; mutual affection, etc. The
distinctive idea of reciprocal is, that one party acts
by way of return or response to something previously
done by the other party; as, a reciprocal kindness;
reciprocal reproaches, etc. Love is reciprocal when
the previous affection of one party has drawn forth
the attachment of the other. To make it mutual in the
strictest sense, the two parties should have fallen in
love at the same time; but as the result is the same,
the two words are here used interchangeably. The
ebbing and flowing of the tide is a case where the
action is reciprocal, but not mutual.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Reciprocal \Re*cip"ro*cal\, noun
1. That which is reciprocal to another thing.
Corruption is a reciprocal to generation. --Bacon.
2. (Arith. & Alg.) The quotient arising from dividing unity
by any quantity; thus 1/4 is the reciprocal of 4; 1/(a +
b) is the reciprocal of a + b. The reciprocal of a
fraction is the fraction inverted, or the denominator
divided by the numerator.
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
199 Moby Thesaurus words for "reciprocal":
algorismic, algorithmic, aliquot, ally, alter ego, alternate,
analogon, analogous, analogue, answering, associate, associated,
back-and-forth, beating, brother, cardinal, changeable, circling,
close copy, close match, coacting, coactive, coadjutant,
coadjuvant, coefficient, coequal, cognate, collaborative,
collective, collectivist, collectivistic, collusive, combined,
commensal, common, communal, communalist, communalistic, communist,
communistic, communitarian, commutable, commutative, commutual,
companion, compensatory, complement, complemental, complementary,
concerted, concordant, concurrent, concurring, congenator,
congener, conjoint, conniving, convertible, cooperant, cooperating,
cooperative, coordinate, correlate, correlative, correspondent,
corresponding, counterpart, cyclic, decimal, differential, digital,
double, duplicate, ecumenic, epochal, equal, equalizing,
equipollent, equivalent, even, every other, exchanged, exponential,
fellow, figural, figurate, figurative, finite, fractional, general,
give-and-take, harmonious, harmonized, homologous, image,
imaginary, impair, impossible, in common, infinite, integral,
interchangeable, interchanged, intermittent, irrational,
isochronal, joint, kindred spirit, like, likeness, logarithmic,
logometric, match, mate, measured, metronomic, mutual,
near duplicate, negative, noncompetitive, numeral, numerary,
numerative, numeric, obverse, odd, ordinal, oscillatory, pair,
parallel, pendant, periodical, permutable, picture, popular,
positive, possible, prime, public, pulsing, punitive, radical,
rational, real, reciprocating, reciprocative, recompensing,
recompensive, recurrent, recurring, reparative, restitutive,
retaliative, retaliatory, retributive, retributory, returnable,
rhythmic, rotary, seasonal, second self, seesaw, serial, shared,
similitude, simulacrum, sine wave, sister, social, socialistic,
societal, soul mate, standard, steady, submultiple, such, suchlike,
surd, swapped, switched, symbiotic, synergetic, synergic,
synergistic, tally, tantamount, the like of, the likes of,
to-and-fro, traded, transcendental, transposed, twin,
uncompetitive, undulant, undulatory, up-and-down, wavelike,
wheeling
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