- the particular appearance presented by the moon or a planet at a given time.
- one of the recurring appearances or states of the moon or a planet in respect to the form, or the absence, of its illuminated disk: the phases of the moon.
verb (used with object), phased, phas·ing.
- phase angle,
- phase contrast microscope,
- phase diagram,
- phase i block,
- phase ii block
Origin of phase
Examples from the Web for phasing
Meanwhile the state is phasing in a fee for visitors to the island.
Wurmser today is sympathetic to phasing out military aid to Israel, but he said there should be a few exceptions.Some of Israel’s Top Defenders Say It’s Time to End U.S. Aid|Eli Lake|July 18, 2014|DAILY BEAST
Further, the health-care law has eliminated lifetime caps on coverage and is phasing out annual caps.A Supreme Win for Women: The Crucial Benefits of Obamacare|Jessica Arons|June 28, 2012|DAILY BEAST
Obama offered no timeline for phasing out this policy and, as usual, no real specifics.
- the fraction of a cycle of a periodic quantity that has been completed at a specific reference time, expressed as an angle
- (as modifier)a phase shift
Word Origin for phase
1705, "phase of the moon," back-formed as a singular from Modern Latin phases, plural of phasis, from Greek phasis "appearance" (of a star), "phase" (of the moon), from stem of phainein "to show, to make appear" (see phantasm). Latin singular phasis was used in English from 1660. Non-lunar application is first attested 1841. Meaning "temporary difficult period" (especially of adolescents) is attested from 1913.
"to synchronize," 1895, from phase (n.). Meaning "to carry out gradually" is from 1949, hence phase in "introduce gradually" (1954), phase out (1954). Related: Phased; phasing.