preformed

listen to the pronunciation of preformed
English - English
formed, constructed or assembled in advance
Simple past tense and past participle of preform
{s} shaped in advance, molded ahead of time; created in advance, produced beforehand
preform
Common misspelling of perform
preform
An object that has undergone preliminary shaping but is not yet in its final form
preform
A word that is no longer in use, but has been reconstructed from current ones
preform
form or shape beforehand or determine the shape of beforehand
preform
{v} to form or fashion beforehand
preform
A fibrous reinforcement pre-shaped on a mandrel or mock-up to approximate contour and thickness desired in the finished part
preform
The rough, incomplete and unused basic form of a stone tool
preform
An early preliminary stage in the reduction manufacture of a flaked stone artifact
preform
form or shape beforehand or determine the shape of beforehand form into a shape resembling the final, desired one
preform
To shape something before some other operation
preform
An assembly of dry fabric and fibers which has been prepared for one of several different wet resin injection processes A preform may be stitched or stabilized in some other way to hold its shape A commingled preform may contain thermoplastic fibers and may be consolidated by elevated temperature and pressure without resin injection
preform
the compressed cylinder of PTFE resin that is used to extrude into raw tubing Also called a billet
preform
In plastics, a compressed table or biscuit of plastic composition used for efficiency in handling and accuracy in weighing materials Also an injection molded parison which is blow molded by a second step into a plastic bottle
preform
{f} mold beforehand, form in advance; shape in advance; assemble beforehand
preform
An early stage in the manufacture of a flaked stone artifact usually with a roughly oval, elliptical or triangular outline Preforms which are roughly shaped, were intended to be finished at a later date into a point or blade In general, the preform was a finished "blank" that lacked only the knapping of the hafting area details for completion of the final implement
preform
Compact mass of premixed plastic material that has been prepared for convenient handling and control of uniformity during the mold loading process
preform
form into a shape resembling the final, desired one
preform
A fibrous or particulate reinforcement preshaped to approximate contour and thickness desired in the finished part
preform
A glass structure from which an optical fiber waveguide may be drawn
preform
A plastic test tube shaped part produced by injection molding systems in the first step of a two-stage injection molding and blow molding process used to produce PET bottles or containers The perform is subsequently re-heated and stretch blown through a blow molding process into the final container shape
preform
A object that has undergone preliminary shaping but is not yet in its final form
preform
The glass rods from which an optical fiber waveguide is drawn
preform
A preform is an assembly of reinforcement that is preshaped,pre-oriented,and formed to near-net shape
preform
To form beforehand, or for special ends
preform
Used in the blow molding processes A heat-softened polymer is formed into a shape similar to a thick test tube with neck threads This tube is subsequently inflated while inside a blow mold to create the shape of the desired article
preform
The glass rod from which optical fiber is drawn
preform
A fibrous reinforcement preshaped to approximate contour and thickness desired in the finished part
preformed

    Pronunciation

    Etymology

    [ 'prE-"form, (")prE-' ] (transitive verb.) 1601. Latin praeformare, from prae- + formare to form, from forma form.
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