| Activase |
tissue plasminogen activator: a thrombolytic agent (trade name Activase) that causes fibrinolysis at the site of a blood clot; used in treating acute myocardial infarction
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|---|---|
| activation |
stimulation of activity in an organism or chemical energizing: the activity of causing to have energy and be active making active and effective (as a bomb)
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| actin- |
one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form
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| actinide |
actinoid: any of a series of radioactive elements with atomic numbers 89 through 103
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| activation energy |
the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the energy of activation during the transition phase of a reaction"
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