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Surrounded by a circle of hairs, or projections of any kind.

The protoplasmic matter which surrounds the entoblast, or cell nucleus, and undergoes segmentation. -- Per`i*blas"tic, a.

In ancient architecture, an inclosed court, esp., one surrounding a temple.

Surrounding the branchiæ; as, a peribranchial cavity.

Surrounding a cell; as, the pericellular lymph spaces surrounding ganglion cells.

The leafy involucre surrounding the fruit stalk of mosses; perichætium; perichete.

Surrounded by setæ; -- said of certain earthworms (genus Perichætus).

The involucre which surrounds the common receptacle in composite flowers.

Inflammation of the tissues surrounding the bladder.

Surrounding a ganglion; as, the periganglionic glands of the frog.

Surrounding the stomach; -- applied to the body cavity of Bryozoa and various other Invertebrata.

A sac which surrounds the generative bodies in the gonophore of a hydroid.

The fluid which surrounds the membranous labyrinth of the internal ear, and separates it from the walls of the chambers in which the labyrinth lies.

Surrounding a muscle or muscles.

The connective tissue sheath which surrounds a muscle, and sends partitions inwards between the bundles of muscular fibers.

Surrounding nerves or nerve fibers; of or pertaining to the perineurium.

The connective tissue sheath which surrounds a bundle of nerve fibers. See Epineurium, and Neurilemma.

Surrounding the teeth.

Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule. -- n.

Surrounding, or situated about, the petals.