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Any one of the acalephs, esp. one of the larger species, having a jellylike appearance. See Medusa.

A group of Coelenterata, including the Medusæ or jellyfishes, and hydroids; -- so called from the stinging power they possess. Sometimes called sea nettles.

Belonging to or resembling the Acalephæ or jellyfishes.

A group of acalephs, including most of the larger jellyfishes; the Discophora.

A genus of jellyfishes. See Discophora.

A small, oval, transparent jellyfish, belonging to the Ctenophora.

A species of jellyfish; sea blubber. Sir T. Herbert.

A division of acalephs or jellyfishes, including most of the large disklike species. -- Dis*coph"o*rous, a.

Any medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and naked-eyed medusæ.

and in a few animals of other groups. They are most highly developed in the tentacles of jellyfishes, hydroids, and Actiniæ. Each of these cells is filled with, fluid, and contains a long, slender, often barbed, hollow thread coiled up within it. When the cell contracts the thread is quickly ejected, being at the same…

The proboscis of a jellyfish; -- called also hypostoma. See Illust. of Hydromedusa.

Any free swimming acaleph; a jellyfish.

The swimming bell or umbrella of a jellyfish of medusa.

One of the filaments on the inner surface of the gastric cavity of certain jellyfishes.

umbrella-shaped or bell-shaped body, with a wide, open cavity beneath; -- said of certain jellyfishes.

A medusa, or jellyfish. [R.] The jellied quarl that flings At once a thousand streaming stings. J. R. Drake.

A medusa, or jellyfish.

A jellyfish, or medusa.

A jellyfish.

A jellyfish. [Prov. Eng.]