8 4 noun
n
noun
• someone who (fraudulently) assumes the appearance of another
Example sentence • He was known as a master imitator , able to mimic the voices of famous celebrities.
11 4 noun
n
noun
• an artist who makes illustrations (for books or magazines or advertisements etc.)
Example sentence • She worked as an illustrator for a children's book.
10 4 noun
n
noun
• a breathing device for administering long-term artificial respiration
Example sentence • The doctor recommended that the patient wear a respirator to help with their breathing difficulties.
10 4 noun
n
noun
• someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects)
Example sentence • The terminator walked silently through the wreckage, scanning for any signs of life.
9 4 noun
n
noun
• a material such as glass or porcelain with negligible electrical or thermal conductivity
Example sentence • The rubber coating on electrical wires acts as an insulator , preventing the flow of electricity.
8 4 verb, noun
v, n
noun
• lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building
Example sentence • I pressed the button and waited for the elevator to arrive.
12 5 noun, adjective
n, adj
noun
• a scientist who devotes himself to doing research
Example sentence • The investigator was hired to solve the mysterious murder case.
9 4 noun
n
noun
• an apparatus that uses centrifugal force to separate particles from a suspension
Example sentence • The separator between the columns is a vertical line.
12 5 noun
n
noun
• white goods in which food can be stored at low temperatures
Example sentence • I need to buy a new refrigerator for my kitchen.
9 4 noun
n
noun
• a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
Example sentence • The guitar had a resonator that enhanced its sound.
9 4 noun
n
noun
• leather made from alligator's hide
verb
• crack and acquire the appearance of alligator hide, as from weathering or improper application; of paint and varnishes
Example sentence • The zookeeper fed the alligator in the reptile enclosure.
13 5 verb, noun
v, n
noun
• an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation
Example sentence • The doctor used a defibrillator to shock the patient's heart back into rhythm.
9 4 noun
n
noun
• a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive
Example sentence • He carefully handled the detonator , ensuring it would only activate the explosives when necessary.
9 4 noun
n
noun
• apparatus consisting of a box designed to maintain a constant temperature by the use of a thermostat; used for chicks or premature infants
Example sentence • The hospital has a neonatal incubator to keep premature babies warm.
9 4 noun
n
noun
• a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
Example sentence • The stock market index is an important indicator of overall economic health.
9 4 noun
n
noun
• the ship's officer in charge of navigation
Example sentence • The navigator plotted the course for the ship.
9 4 noun
n
noun
• a person who specializes in interior decoration
Example sentence • The decorator carefully chose the color scheme for the living room.
11 5 noun
n
noun
• a furnace for incinerating (especially to dispose of refuse)
Example sentence • The city built a new incinerator to handle the increasing amount of waste.
10 4 noun
n
noun
• generator that produces sonic oscillations or alternating current
Example sentence • The electronic device utilizes an oscillator to generate the desired frequency.
8 4 noun
n
noun
• one who agitates; a political troublemaker
Example sentence • The political agitator organized a protest against the government.
10 4 noun
n
noun
• a device for applying a substance
Example sentence • She used a makeup applicator to apply her foundation.
11 5 noun
n
noun
• someone who makes progress easier
Example sentence • The facilitator guided the participants through the team-building exercises.
9 4 noun
n
noun
• someone who helps to open up a new line of research or technology or art
Example sentence • Steve Jobs was a renowned innovator in the field of technology.
10 4 noun
n
noun
• someone who deliberately foments trouble
Example sentence • The instigator of the conflict was a rival gang member.
12 5 noun
n
noun
• a questioner who is excessively harsh
Example sentence • The interrogator grilled the suspect relentlessly until he finally confessed.
10 4 noun
n
noun
• someone who makes or enacts laws
Example sentence • The legislator proposed a new law to protect the environment.
9 4 noun
n
noun
• (law) a party to a lawsuit; someone involved in litigation
Example sentence • The litigator presented compelling evidence to the jury.
9 4 noun
n
noun
• an apparatus that produces a vapor or gas
Example sentence • I need to buy a new generator for my camping trip.
11 4 noun
n
noun
• someone who takes up a position surreptitiously for the purpose of espionage
Example sentence • The infiltrator sneaked into the enemy's headquarters undetected.
7 4 noun
n
noun
• someone who operates an aircraft
Example sentence • The aviator landed the plane safely on the runway.
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