*mentalism*

n. 1. an empirical doctrine that advocates experimental principles. [ WordNet 1.5 ]

2. an orientation that favors experimentation and innovation; as, the children of psycholoigsts are often raised in an atmosphere of experimentalism. [ WordNet 1.5 ]

n. 1. A system of beliefs based on the interpretation of every word in the Bible, both old and new testaments, as literal truth. It is primarily held by a branch of American Protestants. [ WordNet 1.5 ]

2. The beliefs or practises based on a rigid adherence to some traditional doctrine; extreme conservatism; as, Moslem fundamentalism; the political fundamentalism of the Christian right. [ PJC ]

n. (Philos.) The view that the sanction of truth is its utility, or that truth is genuine only in so far as it is a valuable instrument. -- In`stru*men"tal*ist, n.

Instrumentalism views truth as simply the value belonging to certain ideas in so far as these ideas are biological functions of our organisms, and psychological functions whereby we direct our choices and attain our successes. Josiah Royce. [Webster 1913 Suppl.]

n. 1. a doctrine that mind is the only true reality and that objects exist only as aspects of the mind's awareness. [ WordNet 1.5 ]

2. Any theory of psychology that accepts introspective data about the functioning of the mind as a valid object of study; contrasted to behaviorism. [ PJC ]

n. The doctrine and use of sacraments; attachment of excessive importance to sacraments. [ 1913 Webster ]