amphipod

[am-fuh-pod]
noun
1.
any of numerous small, flat-bodied crustaceans of the group Amphipoda, including the beach fleas, sand hoppers, etc.
adjective
2.
of or pertaining to the amphipods.

Origin:
1825–35; < Neo-Latin Amphipoda; see amphi-, -pod

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World English Dictionary
amphipod (ˈæmfɪˌpɒd)
 
n
1.  any marine or freshwater crustacean of the order Amphipoda, such as the sand hoppers, in which the body is laterally compressed: subclass Malacostraca
 
adj
2.  of, relating to, or belonging to the Amphipoda

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

amphipod

any member of the invertebrate order Amphipoda (class Crustacea) inhabiting all parts of the sea, lakes, rivers, sand beaches, caves, and moist (warm) habitats on many tropical islands. Marine amphipods have been found at depths of more than 9,100 m (30,000 feet). Freshwater and marine beach species are commonly known as scuds; those that occupy sand beaches are called sand hoppers, or sand fleas (see sand flea). About 4,600 species have been described. Extraordinarily abundant in the rocky coastal regions of all seas and often exceeding densities of 10,000 per square m (1,000 per square foot), amphipods are often mistaken for tiny shrimp, which they resemble. They are important food for many fishes, invertebrates, penguins, shore birds, small cetaceans, and pinnipeds. Amphipods are also important as scavengers of carrion

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Amphipod density should therefore only be estimated by examining the number of burrow openings.
Statistically significant toxicity was observed in the amphipod and mysid shrimp solid phase tests.
The candidate test methods list included acute test methods with four amphipod species.
Fluorescence of a sea spider and a small benthic amphipod.
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