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| the molecular weight of a substance expressed in grams; a gram molecule |
| the condition existing when a chemical reaction and its reverse reaction proceed at equal rates |
| free radical | |
| —n | |
| Compare group Sometimes shortened to: radical an atom or group of atoms containing at least one unpaired electron and existing for a brief period of time before reacting to produce a stable molecule | |
free radical n.
An uncharged atom or group of atoms having at least one unpaired electron, which makes it highly reactive.
An organic compound having some unpaired valence electrons; a normal byproduct of oxidation reactions in metabolism.
| free radical
An atom or group of atoms that has at least one unpaired electron and is therefore unstable and highly reactive. In animal tissues, free radicals can damage cells and are believed to accelerate the progression of cancer, cardiovascular disease, and age-related diseases. |