(philosophy, metaphilosophy) The school of thought that for a theory to be properly explained it is necessary that all concepts used by the theory be well-defined.

Not perpetuated.

(intransitive, textiles) Of a woven fabric surface, to form small matted balls of fiber. / To form into the shape of a pill. / (transitive) To medicate with pills.

(idiomatic) To mean; to symbolize; to represent / To advocate, to support / To tolerate