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complement
Science; General science
A group of proteins in the blood and body fluids that are sequentially activated by limited proteolysis and play an important role in humoral immunity and the generation of ...
affective disorders
Science; General science
A group of psychiatric conditions, also known as mood disorders, that are characterized by disturbances of affect, emotion, thinking, and behavior. Depression is the most common ...
radio broadcasting network
Science; General science
A group of radio broadcast stations interconnected by leased channels on wire, fiber, microwave, or satellite to one or more central feed points for the purpose of receiving and ...
pyroxenoid
Science; General science
A group of silicate minerals whose physical properties resemble those of pyroxenes. In contrast with the two-tetrahedra periodicity of pyroxene single silicate chains, the ...
pterobranchia
Science; General science
A group of small sessile hemichordates that may be colonial ( Rhabdopleura ), pseudocolonial ( Cephalodiscus ), or solitary ( Atubaria ). Each individual, or zooid, lives inside ...
neolampadoida
Science; General science
A group of small, deep-water cassiduloid echinoids with neotenous characteristics, treated as an order by some workers; possibly polyphyletic. The presence of bourrelets and ...
guild
Science; General science
A group of species that utilize the same kinds of resources, such as food, nesting sites, or places to live, in a similar manner. Emphasis is on ecologically associated groups ...
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