phase out

Also found in: Thesaurus, Medical, Legal, Financial, Idioms, Encyclopedia.


1. A distinct stage of development: "The American occupation of Japan fell into three successive phases" (Edwin O. Reischauer).
2. A temporary manner, attitude, or pattern of behavior: just a passing phase.
3. An aspect; a part: We must reconsider every phase of the operation.
4. Astronomy
a. One of the cyclically recurring apparent shapes of the visibly illuminated portion of the moon or a planet.
b. The relative configuration, measured in angular units such as degrees or radians, of two orbiting bodies that periodically eclipse.
5. Physics
a. A particular stage in a periodic process or phenomenon.
b. The fraction of a complete cycle elapsed as measured from a specified reference point and often expressed as an angle.
6. Chemistry
a. Any of the forms or states, solid, liquid, gas, or plasma, in which matter can exist, depending on temperature and pressure.
b. A discrete homogeneous part of a material system that is mechanically separable from the rest, as is ice from water.
7. Biology A characteristic form, appearance, or stage of development that occurs in a cycle or that distinguishes some individuals of a group: the white color phase of a weasel; the swarming phase of locusts.
tr.v. phased, phas·ing, phas·es
1. To plan or carry out systematically by phases.
2. To set or regulate so as to be synchronized.
Phrasal Verbs:
phase in
To introduce, one stage at a time.
phase out
To bring or come to an end, one stage at a time.
in phase
In a correlated or synchronized way.
out of phase
In an unsynchronized or uncorrelated way.

[Back-formation from New Latin phasēs, phases of the moon, from Greek phaseis, pl. of phasis, appearance, from phainein, to show; see bhā- in Indo-European roots.]

pha′sic (fā′zĭk) adj.

phase out

(tr, adverb) to discontinue or withdraw gradually
the action or an instance of phasing out: a phase-out of conventional forces.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.phase out - terminate gradually
terminate, end - bring to an end or halt; "She ended their friendship when she found out that he had once been convicted of a crime"; "The attack on Poland terminated the relatively peaceful period after WW I"
phase in - introduce gradually

w>phase out

vt sepauslaufen lassen
References in periodicals archive ?
The bans, restrictions, and phase out were forward progress towards protecting peoples health, but the problem is that people are still exposed, said Patrice Sutton, MPH, who led the research translation division of PRHE and is a co-author on the study.
Summary: How long will it take for the government to phase out corporate tax exemptions?
There is a dollar for dollar phase out of the deduction if your total asset acquisitions for the year exceed $560,000," he advises.
Intersection with the S&OP process ensures that both new and existing customer demands are met, while optimizing the cost of supply Once the strategic decision is made to phase out a product, a clearly defined and consistent method must be followed to ensure business benefits will result, with all effected stakeholders involved.
The provisions include an AGI phase out between $95,000 and $110,000 for single taxpayers and $190,000 and $220,000 for married filing jointly taxpayers.