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Pertaining to or designating arc lamps so constructed that more than one can be used on a single circuit.

Pertaining to, or characterized by, descent from more than one root form, or from many different root forms; polygenetic; -- opposed to Ant: monophyletic.

Many-leaved; as, a polyphyllous calyx or perianth.

The Anthozoa.

One of the ordinary zooids of the Bryozoa. [Spellt also polypid.]

A coral, or corallum; also, one of the coral-like structure made by bryozoans and hydroids.

A polypidom.

The Anthozoa.

Bearing polyps, or polypites.

Producing polyps.

One of the feeding zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian.

See Placophora.

Assuming, or having the power of assuming, many forms; as, a polyplastic element which does not preserve its original shape.

A plant of the genus Polypodium; polypody. [Written also polypod.]

A genus of plants of the order Filices or ferns. The fructifications are in uncovered roundish points, called sori, scattered over the inferior surface of the frond or leaf. There are numerous species.

Any plant of the genus Polypodium.

Like a polyp; having the nature of a polyp, but lacking the tentacles or other parts.

Same as Hydrozoa.

Having many pores. Wright.

A genus of fungi having the under surface full of minute pores; also, any fungus of this genus.