Answer:

sine

AnswerCrossword Clue
SINETrig function
SINETriangle ratio
SINEThe S in SOHCAHTOA
SINEAngle function
SINETriangle relationship?
SINETrig ratio
SINETrigonometric function
SINEGraphing calculator function
SINESimple wave shape
SINEMath function
SINE.. die (indefinitely)
SINE.. qua non
SINESort of curve
SINERight-triangle ratio
SINETrigonometry function
SINECosecant's reciprocal
SINEY-coordinate on the unit circle
SINEMath ratio
SINE.. qua non: essential
SINERatio involving a hypotenuse
SINE.. wave
SINERight triangle ratio
SINETrig class ratio
SINE... qua non
SINEKind of wave or curve
SINETrigonometric ratio
SINETrigonometry ratio
SINEOscilloscope wave
SINETrig. function
SINEWave producer
SINEKind of wave
SINEWord before wave or curve
SINEWord with wave or curve
SINE.... die: no fixed date
SINE..qua non
SINE..... qua non
SINE... qua non: essential
SINEFourier series function
SINETrig term
SINEPeriodic function