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The perception of objects which have no reality, or of sensations which have no corresponding external cause, arising from disorder or the nervous system, as in delirium tremens; delusion. Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity. W. A. Hammond.…

The first, or preaxial, digit of the hind limb, corresponding to the pollux in the fore limb; the great toe; the hind toe of birds.

That part of the fore limb below the forearm or wrist in man and monkeys, and the corresponding part in many other animals; manus; paw. See Manus.

s mentioned in John x. 22, is held for eight days (beginning with the 25th day of Kislev, corresponding to December), and is celebrated everywhere, chiefly as a festival of lights, by the Jews.

One who shows the agreement or harmony of corresponding passages of different authors, as of the four evangelists.

Concord or agreement in facts, opinions, manners, interests, etc.; good correspondence; peace and friendship; as, good citizens live in harmony.

In the British Indian armies, a noncommissioned officer of native soldiers, corresponding to a sergeant. Havildar major, a native sergeant major in the East Indian army.

holds the revolving spindle and its attachments; -- also called poppet head, the opposite corresponding part being called a tailstock.

a roundish or oval figure or object having an obtuse point at one end, and at the other a corresponding indentation, -- used as a symbol or representative of the heart.

stone, or metal in a chimney, on which a fire is made; the floor of a fireplace; also, a corresponding part of a stove. There was a fire on the hearth burning before him. Jer. xxxvi. 22. Where fires thou find'st unraked and hearths unswept. There pinch the maids as blue as bilberry. Shak.

The part of a thing corresponding in position to the human heel; the lower part, or part on which a thing rests; especially:

The bank of a canal opposite, and corresponding to, that of the towpath; berm. [U. S.]

ight the helm, to put it amidships. -- To shift the helm, to bear the tiller over to the corresponding position on the opposite side of the vessel. Ham. Nav. Encyc.

The second element in each half of a hemal arch, corresponding to the sternal part of a rib. Owen. -- Hem`a*po*phys"i*al, a.

A member of the highest rank of nobility in Germany and Austria, corresponding to the British duke.

The absence of correspondence, or relation, in type of structure; lack of analogy between parts, owing to their being composed of different elements, or of like elements in different proportions; variation in structure from the normal form; -- opposed to homology.

With the parts not corresponding in number.

joint in the hind limb of quadrupeds between the leg and shank, or tibia and tarsus, and corresponding to the ankle in man.

The correspondence of common descent; -- a term used to supersede homology by Lankester, who also used homoplasy to denote any superinduced correspondence of position and structure in parts embryonically distinct (other writers using the term homoplasmy). Thus, there is homogeny between the fore limb of a mammal and th…

A relation between two figures, such that to any point of the one corresponds one and but one point in the other, and vise versa. Thus, a tangent line rolling on a circle cuts two fixed tangents of the circle in two sets of points that are homographic.