taper

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taper

Engineering (in conical parts) the amount of variation in the diameter per unit of length

taper

[′tā·pər]
(aerospace engineering)
An airfoil feature in which either the thickness or the chord length or both decrease from the root to the tip.
(electricity)
Continuous or gradual change in electrical properties with mechanical position such as rotation or length; for example, continuous change of cross section of a waveguide, or distribution of resistance in a potentiometer.

taper

A gradual diminution of thickness in an elongated object, as in a spire.
References in periodicals archive ?
The families will continue to receive a $577 benefit for 18 months consolidated in a monthly flat grant before it tapers off by 45 percent through year five.
Even the April 16, 1996, letter, after a strong beginning, tapers off to a weak ending, seeking to accommodate a proposal for allowing spousal benefits outside of marriage.
4% annually, coverage is projected to approximate the 4x level through 2009, increasing to over 5x after 2010 as the general obligation bond debt service substantially tapers off.