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Any cavity containing and enveloping anything. The center spike of gold Which burns deep in the bluebell's womb. R. Browning.

To cover by winding or folding; to envelop completely; to involve; to infold; -- often with up. I . . . wrapt in mist Of midnight vapor, glide obscure. Milton.

That which wraps; envelope; covering.

That in which anything is wrapped, or inclosed; envelope; covering.

The outer transparent layer, or envelope, of the ovum. It is a more or less elastic membrane with radiating striæ, and corresponds to the cell wall of an ordinary cell. See Ovum, and Illust. of Microscope. (b) The zona radiata. -- Zona radiata Etym: [NL.] (Biol.), a radiately striated membrane situated next the yolk o…