tapered

adj. becoming gradually narrower

v. gradually decrease in width or thickness at one end; diminish gradually; make thinner at one end; cause to diminish gradually

Adjective
1. gradually narrowed toward a point; "a tall tapering spire"
(synonym) tapering
(similar) pointed
2. becoming gradually narrower; "long tapering fingers"; "trousers with tapered legs"
(synonym) tapering, narrowing
(similar) narrow

Noun
1. a convex shape that narrows toward a point
(hypernym) convex shape, convexity
(derivation) sharpen, point
2. the property possessed by a shape that narrows toward a point (as a wedge or cone)
(hypernym) narrowing
(hyponym) point, pointedness
(derivation) sharpen, point
3. a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame
(synonym) wick
(hypernym) cord
(hyponym) candlewick
(part-holonym) oil lamp, kerosene lamp, kerosine lamp
4. stick of wax with a wick in the middle
(synonym) candle, wax light
(hypernym) lamp
(hyponym) chandlery
(part-meronym) candlewick
Verb
1. diminish gradually; "Interested tapered off"
(hypernym) decrease, diminish, lessen, fall
(derivation) tapering
2. give a point to; "The candles are tapered"
(synonym) sharpen, point
(hypernym) change shape, change form, deform
(hyponym) acuminate
(see-also) taper off

(imp. & p. p.)
of Taper
  

(a.)
Lighted with a taper or tapers; as, a tapered choir.
  

     predate

Drill Pipe, Tubing, Sucker Rods, and so forth with the diameter near the top of the Well larger than the diameter below