- a curve described by the equation y = a sin x, the ordinate being proportional to the sine of the abscissa.
Origin of sinusoid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any of the irregular terminal blood vessels that replace capillaries in certain organs, such as the liver, heart, spleen, and pancreas
- another name for sine curve
- resembling a sinus
C19: from French sinusoïde. See sinus, -oid
Word Origin and History for sinusoid
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of the venous cavities through which blood passes in various glands and organs, such as the adrenal gland and the liver.
- Resembling a sinus.