Definitions for brachiopodˈbreɪ ki əˌpɒd, ˈbræk i-
This page provides all possible meanings and translations of the word brachiopod
Random House Webster's College Dictionary
bra•chi•o•podˈbreɪ ki əˌpɒd, ˈbræk i-(n.)
any superficially clamlike marine animal of the phylum Brachiopoda, having unequal dorsal and ventral shells enclosing a pair of ciliated food-gathering appendages.
Origin of brachiopod:
1830–40; < NL Brachiopoda. See brachio -, -pod
brachiopod, lamp shell, lampshell(adj)
marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide
of or belonging to the phylum Brachiopoda
Any of many marine invertebrates, of the phylum Brachiopoda, that have bivalve dorsal and ventral shells with two tentacle-bearing arms that capture food
one of the Brachiopoda, or its shell
Brachiopods, phylum Brachiopoda, are marine animals that have hard "valves" on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major groups are recognized, articulate and inarticulate. Articulate brachiopods have toothed hinges and simple opening and closing muscles, while inarticulate brachiopods have untoothed hinges and a more complex system of muscles used to keep the two halves aligned. In a typical brachiopod a stalk-like pedicle projects from an opening in one of the valves, known as the pedicle valve, attaching the animal to the seabed but clear of silt that would obstruct the opening. The word "brachiopod" is formed from the Ancient Greek words βραχίων and πούς. They are often known as "lamp shells", since the curved shells of the class Terebratulida look rather like pottery oil-lamps. Lifespans range from 3 to over 30 years. Ripe gametes float from the gonads into the main coelom and then exit into the mantle cavity. The larvae of inarticulate brachiopods are miniature adults, with lophophores that enable the larvae to feed and swim for months, until the animals become heavy enough to settle to the seabed. Larvae of articulate species are different from the adult forms, live only on yolk, remain only among the plankton for only a few days, and then start metamorphosing.
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