;CFM:Cubic feet per minute
;CG:centre of gravity
;cm:centimetre
;CRI:Colour Rendering Index
;cu:cup
;d:day
;D:displacement
;dB:decibel
;DC:direct current
== E ==
;ft:foot
== G ==
;G:force of gravity
;GFCI: ground fault curcuit interrupter
;GZ:righting arm