activation
Making something operational
Activation is the process of making something active or operational.
You activate a device, account, or membership to begin using it: The activation of my new phone took five minutes.
In biology, activation triggers a response—enzyme activation, immune activation.
In military contexts, activation calls reserves to duty.
The word often implies a switch from dormant to functional state.
Prohibited athletic drug use
- dopantSemiconductor-altering impurity
- siliconMetalloid in electronics
- impuritySubstance degrading another's quality
- semiconductorPartial electrical conductor
carrier · electron · hole · donor · acceptor · n-type · p-type · conductivity
What initiates action
- startTo set going
- beginningInitial stage of something
- onsetStarting point of something
- launchSet into motion
commencement · inauguration · kickoff · inception · initiation · startup · introduction · rollout
Protein that hastens reactions
- catalystAgent enabling change
- substrateUnderlying supporting material
- proteinFolded amino chain
- reactionResponse to stimulus
cofactor · binding · metabolic · kinase · phosphorylation · cascade · pathway · ligand
Stirring to heightened state
- motivationImpetus toward a goal
- stimulationEvoking a response
- driveOperate a vehicle
- alertnessActive mental awareness
excitement · response · engagement · readiness · priming · energy · vigilance · attention
Impulse-conducting cell
- synapseNerve signal crossing point
- firingTerminating employment
- depolarizationLoss of electrical gradient
- axonNeuron's signal-sending projection
threshold · spike · potentiation · excitation · receptor · neurotransmitter · impulse · signal
doping
Prohibited athletic drug use
- dopantSemiconductor-altering impurity
- siliconMetalloid in electronics
- impuritySubstance degrading another's quality
semiconductor · carrier · electron · hole · donor · acceptor · n-type · p-type · conductivity · mobility
trigger
What initiates action
launch · commencement · inauguration · kickoff · inception · initiation · startup · introduction · rollout · deployment
enzyme
Protein that hastens reactions
reaction · cofactor · binding · metabolic · kinase · phosphorylation · cascade · pathway · ligand · receptor
arousal
Stirring to heightened state
- motivationImpetus toward a goal
- stimulationEvoking a response
- driveOperate a vehicle
alertness · excitement · response · engagement · readiness · priming · energy · vigilance · attention · wakefulness
neuron
Impulse-conducting cell
- synapseNerve signal crossing point
- firingTerminating employment
- depolarizationLoss of electrical gradient
axon · threshold · spike · potentiation · excitation · receptor · neurotransmitter · impulse · signal · action potential
- Molecular Biologyreplication, transcription, translation, gene expression, gene regulation
- protein biologyfolding, phosphorylation, degradation, proteolysis, modification
- Drug Metabolismbiotransformation, drug metabolism, metabolite, metabolites, CYP450
- neuroimagingbrain MRI, functional MRI, brain scan, fMRI, voxel
- signal regulationfeedback loop, negative feedback, positive feedback, downregulation, upregulation
- useuse, utilize, employ, apply, usage
activationdeactivation
Rendering inoperative
shutdown · disabling · switching off · inactivation · turning off
activationinhibition
Mental check on behavior
inactivation · suppression · deactivation · downregulation · repression
activationtermination
Act of ending something
cancellation · ending · cessation · stopping · halting
- voice activationOperating devices verbally
- activation codeString unlocking paid software
- activation energyMinimum energy for transformation
- activation feeInitial service payment
- activation functionNeuron output transformer
- C-H activationDirect modification of hydrocarbon bonds
activation function, activating, reactivation, deactivating, inactivation, reactivating, activations, reactivations, activation energy