Search the Dictionary

A group of cirripeds having abdominal appendages.

A group of annelids, so called because the species composing it have no special organs of respiration.

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

A group of intestinal worms, having the proboscis armed with recurved spines.

A group of teleostean fishes having spiny fins. See Acanthopterygii.

One of a group of arachnids, including the mites and ticks.

The group of Arachnida which includes the mites and ticks. Many species are parasitic, and cause diseases like the itch and mange.

like the clams and oysters; -- so called because they have no evident head. Formerly the group included the Tunicata, Brachiopoda, and sometimes the Bryozoa. See Mollusca.

A group of suctorial Infusoria, which in the adult stage are stationary. See Suctoria.

The lowest group of Vertebrata, including the amphioxus, in which no skull exists.

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

The lowest groups of animals, in which no nervous system has been observed.

One of a group of lizards having the teeth immovably united to the top of the alveolar ridge. -- a. Of or pertaining to the acrodonts.

A group of Coelenterata, comprising the Anthozoa Ctenophora. The sea anemone, or actinia, is a familiar example.

(Anat.) Formed into clusters or groups of lobules; as, aggregate glands.

Grouped together; as, the agminated glands of Peyer in the small intestine.

A group of the Carnivora, which includes the cats, civets, and hyenas.

A group of soft-bodied Alcyonaria, of which Alcyonium is the type. See Illust. under Alcyonaria.

st magnitude, situated in the eye of Taurus; the Bull's Eye. It is the bright star in the group called the Hyades. Now when Aldebaran was mounted high Above the shiny Cassiopeia's chair. Spenser.

A group of birds including the common fowl and the pheasants.