Appended in general, often informally, stylistically, or jocularly, for reification of an attribute. · Appended to adjectives to form nouns meaning "the state of being (the adjective)", "the quality of being (the adjective)", or "the measure of being (the adjective)".
1(mathematics) The measure or degree to which a knot is complicated, i.e., a knot's complexity; the number of times that it is necessary to pass one part of the curve of the knot projected upon a plane through another in order to untie the knot.