in Logic, denote the two extreme terms of the conclusion of a syllogism; viz. the predicate and subject. They are called extremes, from their relation to another term, which is a medium or mean between them. The predicate, as being likewise had in the first proposition, is called the major extremum, greater extreme; and the subject, as being put in the second or minor proposition, is called the minor extremum, lesser extreme. Thus, in the syllogism, man is an animal; Peter is a man, therefore Peter is an animal; the word animal is the greater extreme, Peter the less extreme, and man the medium. See Syllogism.

EXTREME and mean proportion, in Geometry, is when a line is so divided, that the whole line is to the greater segment, as that segment is to the other: Or, as it is expressed by Euclid, when the line is so divided, that the rectangle under the whole line, and the lesser segment, is equal to the square of the greater segment.

EXTREME Unction. See Unction.

EXTREMITIES of figures, in Painting, is used for the head, hands, and feet. These should be drawn with more nicety and exactness, or more terminated than other parts; and thus help to render the action more expressive.