2 definitions by the_grad

Top Definition
Short for fuck yeah.
"School is over forever!'
"FY, man!"
by the_grad June 07, 2005
The weight of fiber per unit area (width times length) of tape or fabric. Term typically used in the composites industry.
"That fabric has an areal weight of .2 psi."
by the_grad June 08, 2005

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