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That order of the Crinoidea which includes most of the living and many fossil forms, having jointed arms around the margin of the oral disk; -- also called Brachiata and Articulata. See Illusts. under Comatula and Crinoidea.

Sent to many persons or places; intended for many, or for a whole order of men; general; circular; as, an encyclical letter of a council, of a bishop, or the pope.

A process by which many internal parasites, esp. in their larval states, become inclosed within a cyst in the muscles, liver, etc. See Trichina.

, and Illust. of Cell Division, under Division). This mode of growth is characteristic of many forms of cells, both animal and vegetable.

Any monocotyledonous plant; -- so named because many monocotyledons have an endorhizal embryo.

e embryo sheathed by the cotyledon, through which the embryo bursts in germination, as in many monocotyledonous plants.

To cut in; to make by incision. [Obs.] Full many wounds in his corrupted flesh He did engrave. Spenser.

; sufficient; -- usually, and more elegantly, following the noun to which it belongs. How many hired servants of my father's have bread enough and to spare! Luke xv. 17.

The more granular cells, which finally become internal, in many segmenting ova, as those of mammals.

One of the subclasses of Crustacea, including a large number of species, many of them minute. The group embraces several orders; as the Phyllopoda, Ostracoda, Copepoda, and Pectostraca. See Copepoda, Phyllopoda, and Cladocera.

in a pleasant glade, With mountains round about environed. Spenser. Environed he was with many foes. Shak. Environ me with darkness whilst I write. Donne.

Of or pertaining to rocks or strata older than the Paleozoic, in many of which the eozoön has been found.

fly (Zoöl.), one of a group of neuropterous insects, belonging to the genus Ephemera and many allied genera, which live in the adult or winged state only for a short time. The larvæ are aquatic; -- called also day fly and May fly.

A projection, formed by a separate ossification, at the scapular end of the clavicle of many birds.

, a large number in a community; -- applied to a disease which, spreading widely, attacks many persons at the same time; as, an epidemic disease; an epidemic catarrh, fever, etc. See Endemic.

An epipterygoid bone or cartilage; the columella in the skulls of many lizards.

A median bone connected with the sternum, in many vertebrates; the interclavicle.

continuous and, usually, structureless layer which covers more or less of the exterior of many corals.

itically upon the exterior of other animals; an ectozoön. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans.

Of the nature of a disease which attacks many animals at the same time; -- corresponding to epidemic diseases among men.