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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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physical entity go
an entity that has physical existence
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thing go
a separate and self-contained entity
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unit, building block go
a single undivided natural thing occurring in the composition of something else
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molecule go
(physics and chemistry) the simplest structural unit of an element or compound
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macromolecule, supermolecule go
any very large complex molecule
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protein go
any of a large group of nitrogenous organic compounds that are essential constituents of living cells
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cytokine go
any of various protein molecules secreted by cells of the immune system that serve to regulate the immune system
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lymphokine go
a cytokine secreted by helper T cells in response to stimulation by antigens and that acts on other cells of the immune system (as by activating macrophages)
interleukin
any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system
noun.substance

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