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A genus of freeswimming oceanic tunicates, allied to Salpa, and having alternate generations.

[R.] Tenderness becomes me best, a sort of dyingness; you see that picture, Foible, -- a swimmingness in the eyes; yes, I'll look so. Congreve.

A swimming out. [Obs.] Bailey.

A membranous, finlike, swimming organ, as in pteropod and heteropod mollusks.

(Steamship), a propeller with a single blade that oscillates like the tail of a fish when swimming.

A broad flat limb used for swimming, as those of seals, sea turtles, whales, etc.

Swimming on the surface; buoyant; light. Sir W. Raleigh.

A genus of nudibranchiate mollusks, found in the warmer latitudes, swimming in the open sea. These mollusks are beautifully colored with blue and silvery white.

One of several swimming birds or divers, of the genus Colymbus (formerly Podiceps), aud allied genera, found in the northern parts of America, Europe, and Asia. They have strong, sharp bills, and lobate toes.

A group of transparent, free-swimming Annelida, having setae only in the cephalic appendages.

, including the naked-eyed medusæ; the hydromedusæ. Most of them are known to be the free-swimming progeny (gonophores) of hydroids.

Kansas, belonging to the Odontornithes. They had teeth, and were essentially carnivorous swimming ostriches. Several species are known. See Illust. in Append.

A free-swimming, dimorphic, sexual form of certain species of Nereis.

of birds are hovering about the bridge, and settling on it. Addison. A hovering mist came swimming o'er his sight. Dryden.

allied genera. These snakes are venomous, live upon fishes, and have a flattened tail for swimming.

Lady court, the court of a lady of the manor. -- Lady crab (Zoöl.), a handsomely spotted swimming crab (Platyonichus ocellatus) very common on the sandy shores of the Atlantic coast of the United States. -- Lady fern. (Bot.) See Female fern, under Female, and Illust. of Fern. -- Lady in waiting, a lady of the queen'…

A limb or member of an animal used for supporting the body, and in running, climbing, and swimming; esp., that part of the limb between the knee and foot.

birds of the genus Urinator (formerly Colymbus), noted for their expertness in diving and swimming under water. The common loon, or great northern diver (Urinator imber, or Colymbus torquatus), and the red-throated loon or diver (U. septentrionalis), are the best known species. See Diver.

A genus of free-swimming macruran Crustacea, having a slender body and long appendages.

Any free swimming acaleph; a jellyfish.