sinusoid

[ sahy-nuh-soid ]
/ ˈsaɪ nəˌsɔɪd /

noun Mathematics.

a curve described by the equation y = a sin x, the ordinate being proportional to the sine of the abscissa.

Origin of sinusoid

First recorded in 1815–25; sinus + -oid

Words nearby sinusoid

sinus of vena cava, sinus pause, sinus rhythm, sinus sabaeus, sinusitis, sinusoid, sinusoidal, sinusoidal projection, sinusotomy, sinǔiju, sion

British Dictionary definitions for sinusoid

sinusoid
/ (ˈsaɪnəˌsɔɪd) /

noun

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

adjective

resembling a sinus

Word Origin for sinusoid

C19: from French sinusoïde. See sinus, -oid

Medical definitions for sinusoid

sinusoid
[ sī′nə-soid′, -nyə- ]

n.

Any of the venous cavities through which blood passes in various glands and organs, such as the adrenal gland and the liver.

adj.

Resembling a sinus.

Other words from sinusoid

si′nu•soi′dal (-soid′l) adj.