Machinery. (in a screw or other threaded object) the ridge or surface farthest from the body of the object and defined by the flanks of the thread.Compare root1(def 15a).
verb (used with object)
to furnish with a crest.
to serve as a crest for; crown or top.
to reach the crest or summit of (a hill, mountain, etc.).
verb (used without object)
to form or rise to a crest, as a wave or river.
to reach the crest or highest level: Interest in the project has crested.
Origin of crest
1275–1325;Middle Englishcreste < Old French < Latincrista
Related formscrest·ed, adjectivecrest·less, adjectivesub·crest, nounun·crest·ed, adjectiveun·der·crest, noun
a tuft or growth of feathers, fur, or skin along the top of the heads of some birds, reptiles, and other animals
something resembling or suggesting this
the top, highest point, or highest stage of something
a ridge on the neck of a horse, dog, lion, etc
the mane or hair growing from this ridge
an ornamental piece, such as a plume, on top of a helmet
heraldrya symbol of a family or office, usually representing a beast or bird, borne in addition to a coat of arms and used in medieval times to decorate the helmet
a ridge along the top of a roof, wall, etc
a ridge along the surface of a bone
Also called: crestingarcheryidentifying rings painted around an arrow shaft
verb
(intr)to come or rise to a high point
(tr)to lie at the top of; cap
(tr)to go to or reach the top of (a hill, wave, etc)
early 14c., from Old French creste "tuft, comb" (Modern French crête), from Latin crista "tuft, plume," perhaps related to word for "hair" (e.g. crinis), but it also was used for crest of a cock or a helmet. Replaced Old English hris.
crest
v.
late 14c., "provide with a crest," from Old French crester, from creste (see crest (n.)). Meaning "to come over the top of" is from 1832. Related: Crested; cresting.
