Relating to, composed of, or characterized by two identical or similar subunits or parts, especially in chemistry and biology.
From 'dimer' + '-ic' (adjective suffix). The term became standard in biochemistry and molecular biology during the 20th century to describe structural arrangements of biological molecules.
Green fluorescent protein (GFP), which won a Nobel Prize because it revolutionized biological imaging, is actually dimeric in its most useful form—two copies stick together, and this pairing affects its color and brightness in ways scientists exploited brilliantly.
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