Definition of Activation

1. Noun. Stimulation of activity in an organism or chemical.

Specialized synonyms: Indweller
Generic synonyms: Stimulation
Derivative terms: Activate, Activate, Activate, Activate
Antonyms: Inactivation

2. Noun. The activity of causing to have energy and be active.
Exact synonyms: Activating, Energizing
Generic synonyms: Activity
Specialized synonyms: Electrification, Animation, Invigoration, Vivification
Derivative terms: Energize, Energize

3. Noun. Making active and effective (as a bomb).
Generic synonyms: Beginning, Commencement, Start
Derivative terms: Activate
Antonyms: Deactivation

Definition of Activation

1. Noun. Making active and effective. ¹

2. Noun. (physics) The process of making a radioisotope by bombarding a stable element with neutrons or protons. ¹

¹ Source: wiktionary.com

Definition of Activation

1. [n -S]

Medical Definition of Activation

1. Activation occurs when a particle interacts with an atomic nucleus, shifting the nucleus into an unstable state, and causing it to become radioactive. In fusion research, where deuterium-tritium is a common fuel mixture, the neutron released when (D + T) combine to form (4He + n) can activate the reactor structure. In this case the 4He is inert, the neutron sticks to another nucleus, and the neutron + nucleus reaction creates an actvation product. Sometimes called radioactivation. See: activation product, activation analysis. (09 Oct 1997)

Lexicographical Neighbors of Activation

activated complex
activated fatty acid
activated glucose
activated macrophage
activated partial thromboplastin time
activated resin
activated sludge
activated sludge method
activated sludge process
activated state
activater
activates
activating
activating(a)
activating agent
activation (current term)
activation analyses
activation analysis
activation energy
activation product
activation record
activational
activationist
activationless
activations
activator
activator appliances
activators
active acetate

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