Dictionary » J » Jackets



1. A short upper garment, extending downward to the hips; a short coat without skirts.

2. An outer covering for anything, especially. A covering of some nonconducting material such as wood or felt, used to prevent radiation of heat, as from a steam boiler, cylinder, pipe, etc.

3. In ordnance, a strengthening band surrounding and reenforcing the tube in which the charge is fired.

4. A garment resembling a waistcoat lined with cork, to serve as a life preserver; called also cork jacket. Blue jacket.

see blue. Steam jacket, a space filled with steam between an inner and an outer cylinder, or between a casing and a receptacle, as a kettle. To dust one's jacket, to give one a beating.

Origin: f. Jaquette, dim. Of jaque. See jack.

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keeping animal cool

... animals bl00d, large amounts of hair (typical of the sumoyed) would in addition block thermal heat radiating off the skin of the dog. Cold weather jackets focus on this principle by preventing heat from leaving the body and blocking cold air from touching the body. If the dog has a thick coat, ...

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by 123Herpatology
Mon Jun 26, 2006 11:10 am
Forum: Zoology Discussion
Topic: keeping animal cool
Replies: 11
Views: 7395

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