Entertainment / Literature / Dipody: In classical prosody, dipody describes the combination of two feet into another single metrical unit. Often used interchangeably with the more general term syzygy, this dipody involves the substitution of two normal feet, usually iambs or trochees, under a more powerful beat, so that a 'galloping' or 'rolling' rhythm results. See iamb, meter, rhythm, and trochee. Dipody is common in children's rhymes, nursery rhymes, and ballads. J. A. Cuddon lists two examples in his Dictionary of Literary Terms and Literary Theory that are too lengthy to reproduce here, but serve to illustrate the effect well.
Entertainment / Literature / Dimeter: A line containing only two metrical feet. See meter and foot. MORE
Science / Astrology / Syzygy: From the Latin, yoked together; refers to points at which a planet conjuncts or opposes the Sun; usually used in reference to those Sun/Moon conjunctions and oppositions that are eclipse events. MORE