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Of or pertaining to catoptrics; produced by reflection. Catoptric light, a light in which the rays are concentrated by reflectors into a beam visible at a distance.

That part of optics which explants the properties and phenomena of reflected light, and particularly that which is reflected from mirrors or polished bodies; --- formerly caled anacamptics.

A species of divination, which was perforned by letting down a mirror into water, for a sick person to look at his face in it. If his countenance appeared distorted and ghastly, it was an ill omen; if fresh and healthy, it was favorable.

Pertaining to the Chætopoda. -- n.

A very extensive order of Annelida, characterized by the presence of lateral setæ, or spines, on most or all of the segments. They are divided into two principal groups: Oligochæta, including the earthworms and allied forms, and Polychæta, including most of the marine species.

An appearance of Christ, as to his disciples after the crucifixion.

One of the granules of protoplasm, which in mass give color to the part of the plant containing them.

A colorless crystalline alkaloid obtained in small quantities from opium.

A nucleated cell having an envelope or cell wall, as a red blood corpuscle or an epithelial cell; a cell concerned in growth.

The substance of the body of a cell, as distinguished from the karyoplasma, or substance of the nucleus. -- Cy`to*plas"mic (-pl, a.

Of or pertaining to skin diseases, or their cure.

A vegetable parasite, infesting the skin.

The lifeless food matter in the cytoplasm of an ovum or a cell, as distinguished from the active or true protoplasm; yolk substance; yolk.

Pertaining to, or composed of, deutoplasm.

The block or strip of wood or similar material which stops, at the right place, the shutting of a door.

Any parasite which lives on the exterior of animals; -- opposed to endoparasite. -- Ec`to*par`a*sit"ic, a.

A morbid displacement of parts, especially such as is congenial; as, ectopia of the heart, or of the bladder.

Out of place; congenitally displaced; as, an ectopic organ.

The outer transparent layer of protoplasm in a developing ovum.

Pertaining to, or composed of, ectoplasm.