Answer:

surd

Answer	Crossword Clue
SURD	Irrational number
SURD	Irrational.
SURD	Voiceless.

SURD	Without reason.
SURD	Irrational number.
SURD	Irrational number in mathematics.
SURD	Not expressible in rational numbers.
SURD	Voiceless speech sound.
SURD	Mathematical term.
SURD	Quantity inexpressible in whole numbers.
SURD	Irrational, as a number.

SURD	Irrational, as numbers.
SURD	A number like pi.
SURD	Math term.
SURD	Speech sound.
SURD	Voiceless, in phonetics.
SURD	Math term
SURD	Irrational
SURD	Unsounded consonant

SURD	Irrational root
SURD	Voiceless
SURD	Voiceless, in phonetics
SURD	Voiceless consonant
SURD	Voiceless sound
SURD	Voiceless sound, in phonetics
SURD	Irrational quantity
SURD	Irrational, in math.

SURD	Irrational, to mathematicians