1. (n.) The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.
2. (n.) A wavy appearance or outline; waviness.
3. (n.) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
4. (n.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.
5. (n.) A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration.
Thesaurus Entries
Lissajous figure, back-and-forth, battledore and shuttlecock, beat, chain, coaction, coming and going, commutation, complementary distribution, concurrence, consecution, cooperation, counterchange, cross fire, cyclicalness, ebb and flow, engagement, exchange, fluctuation, flux and reflux, give-and-take, interaction, interchange, intercommunication, intercourse, interlacing, intermeshing, intermittence, intermittency, intermutation, interplay, intertwining, interweaving, interworking, lex talionis, measure for measure, mesh, meshing, meter, mutual admiration, mutual support, mutual transfer, mutuality, order, oscillation, pendulation, pendulum motion, periodicalness, periodicity, permutation, piston motion, progression, pulsation, quid pro quo, reappearance, reciprocality, reciprocation, reciprocity, recurrence, regular wave motion, reoccurrence, repetition, retaliation, return, reversion, rhythm, rhythmic play, rotation, row, seasonality, seesaw, seesawing, sequel, sequence, series, shifting, shuffling, sine wave, something for something, succession, teeter, teeter-totter, teeter-tottering, teetering, tit for tat, to-and-fro, tottering, train, transposal, transposition, undulation, ups and downs, vacillation, variation, vicissitude, wavering, wigwag
