plastic (redirected from Biodegradeble Polymers)

plastic /plas·tic/ (-tik)

1. tending to build up tissues to restore a lost part.

2. capable of being molded.

3. a high-molecular-weight polymeric material, usually organic, capable of being molded, extruded, drawn, or otherwise shaped and hardened into a form.

4. material that can be molded.

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plas·tic (plstk)

adj.

1. Capable of being shaped or formed.

2. Easily influenced; impressionable.

3. Capable of building tissue; formative.

n.

Any of various organic compounds produced by polymerization, capable of being molded, extruded, cast into various shapes and films, or drawn into filaments used as textile fibers.

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plas·tici·ty (pls-ts-t) n.

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plastic

[plas′tik]

Etymology: Gk, plastikos

1  adj, tending to build up tissues or to restore a lost part.

2  adj, conformable; capable of being molded.

3  n, a high-molecular-weight polymeric material, usually organic, capable of being molded, extruded, drawn, or otherwise shaped and then hardened into a form.

4  n, material that can be molded.

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plastic,

n 1. a restorative material (e.g., amalgam, cement, gutta-percha, resin) that is soft at the time of insertion and may then be shaped or molded, after which it will harden or set.
adj 2. malleable; capable of being molded.

plastic base,

n See base, plastic.

plastic closure,

n suturing of tissues that involves their displacement by sliding or rotation to create a surgical closure.

plastic strip,

n a clear plastic strip of celluloid or acrylic resin used as a matrix when silicate cement or acrylic is inserted into proximal prepared cavities in anterior teeth.

plastic surgery,

n branch of medicine that deals with the surgical alteration, replacement, restoration, or reconstruction of a visible part of the body to correct a structural or cosmetic defect.

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plastic

1. tending to build up tissues to restore a lost part.

2. capable of being molded.

3. a substance produced by chemical condensation or by polymerization.

4. material that can be molded.

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plastic dish dermatitis

an inflammatory skin reaction on the muzzle of dogs caused by a hypersensitivity to plastic feeding dishes.

plastic toy poisoning

nervous signs including ataxia, hyperexcitability and muscle twitching sometimes occur in cats after eating chidren's plastic toys made of rubber and polythene.

plastic vinyl sheeting

a surgical drape made of synthetic material with the advantage of not being capillary and not abrasive to exposed tissue.

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plastic 

Various organic or synthetic materials (e.g. CR-39, HEMA, polymethyl methacrylate, polycarbonate, etc.) that can be transformed into solid shapes to make spectacle frames, contact lenses, ophthalmic lenses, etc. and can be made to have good optical surfaces, high light transmission and refractive indices and dispersions similar to that of crown or flint glass. See acetone; index of refraction; plastic spectacle frame.