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The typical limb, or lateral fin, of fishes.

An extinct genus of toothed birds found in the American Cretaceous formation. It is remarkable for having biconcave vertebræ, and sharp, conical teeth set in sockets. Its wings were well developed. It is the type of the order Odontotormæ.

One of the Ichthyosaura.

An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period.

Of or pertaining to the Ichthyosauria. -- n.

An extinct genus of marine reptiles; -- so named from their short, biconcave vertebræ, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oölitic, and Cretaceous formations.

A disease in which the skin is thick, rough, and scaly; -- called also fishskin. -- Ich`thy*ot"ic, a.

One skilled in ichthyotomy.

The anatomy or dissection of fishes. [R.]

Same as Ichthus.

A peculiar, or individual, characteristic or affection. All men are so full of their own fancies and idiopathies, that they scarce have the civility to interchange any words with a stranger. Dr. H. More.

Sensibility; feeling; -- opposed to apathy. [R.]

A peculiar substance obtained from the thyroid gland, containing from nine to ten per cent of iodine.

A line connecting the points on the surface of the earth where a certain temperature is found at the same depth.

Of or pertaining to an isobathytherm; possessing or indicating the same temperature at the same depth.

The theory of curing a diseased organ by eating the analogous organ of a healthy animal. Mayne.

Lustful; lewd; salacious; indecent; obscene.

See Kinesiatrics.

Like a lath; long and slender. A lathy horse, all legs and length. R. Browning.

Deserving to be laughed at. [R.] B. Jonson.