Difference between Demonstrator and Protester

DEMONSTRATOR vs PROTESTER: NOUN

Someone who demonstrates an article to a prospective buyer
A teacher or teacher's assistant who demonstrates the principles that are being taught
One that demonstrates, such as a participant in a public display of opinion.
An article or product used in a demonstration.
One who points out, exhibits, or explains by examples; specifically, in anatomy, one who exhibits, describes, and explains the parts when dissected; a teacher of practical anatomy.
One who demonstrates; one who proves anything with certainty or with indubitable evidence.
The index finger.
One who demonstrates
One who proves anything with certainty, or establishes it by indubitable evidence.
One who shows how a certain device operates or a procedure is performed.
Someone who participates in a public display of group feeling
A person who participates in a demonstration{7}.
The forefinger
A person involved in a demonstration
An item, (particularly a vehicle), used for customer familiarisation.
A teacher of practical anatomy.

Someone who participates in a public display of group feeling
A person who dissents from some established policy
One who protests; one who utters a solemn or formal declaration.
One who protests a bill of exchange, etc.
[capitalized] Specifically, in Scottish history, a member of a party which protested against the union of the Royalists with the Presbyterians in 1650. Also spelled Protestor.
One who protests a bill of exchange, or note.

Campaigner, Tear gas, Teargas, Militiaman, Placard, Policeman, Picketer, Activist, Rioter, Marcher, Elect, Demo, Demonstration, Sales demonstrator, Protester

Supporter, Tear gas, Militiaman, Demonstration, Picketer, Campaigner, Policeman, Rioter, Activist, Marcher, Contestant, Dissenter, Dissident, Objector, Demonstrator

Bystander, Counterdemonstration, Supporter, Campaigner, Tear gas, Militiaman, Placard, Policeman, Picketer, Activist, Rioter, Marcher, Elect, Demo, Demonstration

Picket, Anarchist, Supporter, Tear gas, Militiaman, Demonstration, Picketer, Campaigner, Policeman, Rioter, Activist, Marcher, Contestant, Dissenter, Dissident

VOICE OF COOKING DEMONSTRATOR: Fat is the magic ingredient.
Records identifying the total mileage for each demonstrator iii.
JAXA are working on Callisto, a reducescale reusability demonstrator.
The current budget supports pursuit of a laser demonstrator.
Demonstrator Lee Junhee says the uncertainty troubles him.
One unarmed demonstrator was murdered by a cop.
FPSRussia, a weapons demonstrator and commentator on Youtube.
Ann Arbor, was appointed Demonstrator in mechanical dentistry.
Valkyrie demonstrator at Yuma Proving Grounds in Arizona.
DEMONSTRATOR 3: 3D MICRO SWITCHES Radiall demonstrator is a slim line micro-switch.

Victory in Detroit Black Lives Matter protester cases!
They tried to say she was a protester.
Police hit a student protester in Letpadan, Myanmar.
US Supreme Court ruling about protester buffer zones.
Another wounded protester later died of his wounds.
Which brings us back to that young protester.
Web site of tax protester Tom Cryer, Esq.
Protester were reportedly fired upon with live ammunition.
Mayor Benjamin reviews video of SC protester held down, arrested Mayor Benjamin, CPD Chief Holbrook release video showing CPD officers subdue protester.
To establish prejudice, a protester is not required to show that, but for the alleged error, the protester would have been awarded the contract.