stimulator

catalyst

Agent enabling change

• triggerWhat initiates action
• initiatorOne who starts something
• sparkTiny fiery particle

inducer · igniter · starter · impulse · generator · instigator · energizer · precipitator · inciter · promoter

vibrator

Device producing oscillations

• massagerDevice that kneads muscles
• toyObject for amusement
• pleasureHappy, satisfied feeling

intimate · arousal · sensation · erotic

inspiration

Source of creative impulse

• encouragementSupport spurring continued effort
• incentiveReward encouraging action
• impetusForce initiating action

momentum · catalyst · drive · spur · goad · prod · prompt · influence · muse · energizer

electrode

Conductive interface point

• pacemakerDevice regulating heartbeat
• defibrillatorHeart-shocking medical device
• TENSElectrical nerve therapy

nerve · muscle · implant · probe · pulse · electrical · therapeutic · neural · cardiac · transcranial

agitator

One who foments discord

• instigatorOne who provokes action
• rabble-rouserOne who stirs dissent
• firebrandAgitator or burning stick

troublemaker · pot-stirrer · antagonist · fomenter · inciter · disruptor · gadfly · contrarian · inflammatory · radical

amplifier

Signal-strengthening electronic device

• boosterSomething that increases strength
• augmenterThat which increases
• intensifierSomething that strengthens

fortifier · reinforcer · magnifier · optimizer · strengthener · accelerant · supplement · additive · adjuvant · synergist

• sex toysvibrator, dildo, butt plug, cock ring, anal beads
• motivatorsmotivator, rewards, ambition, incentive, incentives
• lab equipmentmicroscope, microscopes, beaker, beakers, test tube
• neurosurgerybrain surgery, neurosurgery, craniotomy, brain tumor removal, DBS
• cardiac monitorsECG machine, EKG machine, electrocardiograph, cardiac monitor, heart monitor
• neuroscience toolsEEG machine, electrode, microelectrode, reference electrode, neural implant