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An opera glass; pl.

ance of intellect; not darkened or confused by delirium or madness; marked by the regular operations of reason; as, a lucid interval.

One who or operates a machine; a machinist. [R.]

olent enmity; malevolent; malicious; spiteful; -- opposed to benign. Witchcraft may be by operation of malign spirits. Bacon.

Manipulatory; as, manipular operations.

To treat, work, or operate with the hands, especially when knowledge and dexterity are required; to manage in hand work; to handle; as, to manipulate scientific apparatus.

The use of the hands in mesmeric operations.

er end. The mirror is pivoted so that it can be moved in one direction by a small plunger operated by an elastic metal diaphragm which closes a tube connected with the engine cylinder. It is also moved at right angles to this direction by a reducing motion, called a reproducer, so as to copy accurately on a smaller sca…

The operation of making wares or any products by hand, by machinery, or by other agency.

An officer of high rank, charged with the arrangement of ceremonies, the conduct of operations, or the like; as, specifically:

A masterly operation; a feat. [Obs.] I will do a maistrie ere I go. Chaucer.

The act or operation of masticating; chewing, as of food. Mastication is a necessary preparation of solid aliment, without which there can be no good digestion. Arbuthnot.

angular arrangement of symbols in rows and columns. The symbols may express quantities or operations.

Made and operated by interaction of forces without a directing intelligence; as, a mechanical universe.

Mechanical operation or action. He acknowledges nothing besides matter and motion; so that all must be performed either by mechanism or accident. Bentley.

The act or operation of meliorating, or the state of being meliorated; improvement. Bacon.

with a musical accompaniment only in parts which are especially thrilling or pathetic. In opera, a passage in which the orchestra plays a somewhat descriptive accompaniment, while the actor speaks; as, the melodrama in the gravedigging scene of Beethoven's "Fidelio".

s of the determining factors and hence also of the individuals possessing them) shows the operation of the law: Tallness being due to a factor T, a tall plant, arising by the union in fertilization of two germ cells both bearing this factor, is TT; a dwarf, being without T, is tt. Crossing these, crossbreeds, Tt, resul…

Of or pertaining to the mind; intellectual; as, mental faculties; mental operations, conditions, or exercise. What a mental power This eye shoots forth! Shak. Mental alienation, insanity. -- Mental arithmetic, the art or practice of solving arithmetical problems by mental processes, unassisted by written figures.…

The process or operation of obtaining the mercury, in its fluid form, from mercuric minerals.