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Level 34

Technology -2


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filament
a thin wire, especially one that lights up inside an electric light bulb
vacuum
a space from which most or all of the air, gas, or other material has been removed or is not present
sue
to take legal action against a person or organization
appeal
to formally request that a legal or official decision be changed
perspiration
sweat (= a clear liquid passed through the skin)
adage
a wise saying
viable
able to work as intended or able to succeed
aviation
the activity of flying aircraft, or of designing, producing, and keeping them in good condition
confer
to discuss , consult with somebody
cruise
to ride, sail or move from place to place at a gradual speed
inflexibility
fixed and unable or unwilling to change
pitch
the amount of slope, especially of a roof
prolong
to make something last a longer time
turbulence
strong sudden movements within air or water
propeller
a device that causes a ship or aircraft to move, consisting of two or more blades that turn round at high speed