5. Abounding in riches; affluent; fortunate. [Obs.]

Persons grown fat and wealthy by long impostures.

Swift.

6. (Typog.) Of a character which enables the compositor to make large

wages; -- said of matter containing blank, cuts, or many leads, etc.;

as, a fat take; a fat page.

Fat lute, a mixture of pipe clay and oil for filling joints.

Fat (?), n. 1. (Physiol. Chem.) An oily liquid or greasy substance

making up the main bulk of the adipose tissue of animals, and widely

distributed in the seeds of plants. See Adipose tissue, under Adipose.

Animal fats are composed mainly of three distinct fats, tristearin,

tripalmitin, and triolein, mixed in varying proportions. As olein is

liquid at ordinary temperatures, while the other two fats are solid, it

follows that the consistency or hardness of fats depends upon the

relative proportion of the three individual fats. During the life of an

animal, the fat is mainly in a liquid state in the fat cells, owing to

the solubility of the two solid fats in the more liquid olein at the

body temperature. Chemically, fats are composed of fatty acid, as

stearic, palmitic, oleic, etc., united with glyceryl. In butter fat,

olein and palmitin predominate, mixed with another fat characteristic

of butter, butyrin. In the vegetable kingdom many other fats or

glycerides are to be found, as myristin from nutmegs, a glyceride of

lauric acid in the fat of the bay tree, etc.

2. The best or richest productions; the best part; as, to live on the

fat of the land.

3. (Typog.) Work. containing much blank, or its equivalent, and,

therefore, profitable to the compositor.

Fat acid. (Chem.) See Sebacic acid, under Sebacic. -- Fat series, Fatty

series (Chem.), the series of the paraffine hydrocarbons and their

derivatives; the marsh gas or methane series. -- Natural fats (Chem.),

the group of oily substances of natural occurrence, as butter, lard,

tallow, etc., as distinguished from certain fatlike substance of

artificial production, as paraffin. Most natural fats are essentially

mixtures of triglycerides of fatty acids.

Fat, v. t. [imp. & p. p. Fatted (?); p. pr. & vb. n. atting (?).] [OE.

fatten, AS. fttian. See Fat, a., and cf. Fatten.] To make fat; to

fatten; to make plump and fleshy with abundant food; as, to fat fowls

or sheep.

We fat all creatures else to fat us.

Shak.

Fat, v. i. To grow fat, plump, and fleshy.

An old ox fats as well, and is as good, as a young one.

Mortimer.

Fa"tal, a. [L. fatalis, fr. fatum: cf. F. fatal. See Fate.] 1.

Proceeding from, or appointed by, fate or destiny; necessary;

inevitable. [R.]

These thing are fatal and necessary.

Tillotson.

It was fatal to the king to fight for his money.

Bacon.

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