noun Etymology: Medieval Latin sinus sine Date: 1823 sine curve , sine wave , a minute endothelium-lined space or passage for blood in the tissues of an organ (as the liver)
SINUSOID
Meaning of SINUSOID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012