Noah Webster
Hypotenuse
HYPOT'ENUSE, noun [Gr. to subtend.] In geometry, the subtense or longest side of a right-angled triangle, or the line that subtends the right angle.
HYPOT'ENUSE, noun [Gr. to subtend.] In geometry, the subtense or longest side of a right-angled triangle, or the line that subtends the right angle.