0 an artificial material that is a kind of plastic, often used for making clothes, bags, tents, etc.: --
1 a polymer (= a chemical substance consisting of large molecules made from many smaller and simpler molecules) in which the polymer units are joined by esters (= substances produced by a reaction between an acid and an alcohol): --
Polyesters can be made by reacting dicarboxylic acids with diols.
Polyesters are another type of condensation polymer.
2 a cloth made from artificial substances: --
polyester pants
In addition, the width of the polyester insulation is 30 cm, which leaves a 5 cm margin on each side of the copper winding.
The inside of the traps was lined with fabric containing 70% polyester and 30% cotton to facilitate removal of the collected material.
Relatively poorly lithified siltstones were sometimes disaggregated by shaking in water and organic residues concentrated by filtering through 250 mm polyester mesh.
The upper side of the glass cell was covered with polyester mesh screening with a 95 m opening size.
The transparent plane is cast out of clear polyester resin and measures 340 x 1200 x 10mm.
The frames arc covered by a specially developed clastic polyester fabric.
Low catches occurred even for nominal phthalogen blue, but slightly-shiny, polyester fabrics in widespread use for tsetse.
Polyester patches are sewn by a polyester thread to both discs and the connecting stent.