from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Mathematics See sine curve.
- n. Anatomy Any of the venous cavities through which blood passes in various glands and organs, such as the adrenal gland and the liver.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sine curve.
- n. Any of several channels through which venous blood passes in various organs.
- adj. sinusoidal.
- adj. That resembles a sinus.
from the GNU version of the Collaborative International Dictionary of English
- n. The curve whose ordinates are proportional to the sines of the abscissas, the equation of the curve being y = a sin x. It is also called the curve of sines.
from The Century Dictionary and Cyclopedia
- n. The curve of sines, in which the abscissas are proportional to an angle, and the ordinates to its sine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. tiny endothelium-lined passages for blood in the tissue of an organ
- n. the curve of y=sin x
Medieval Latin sinus, sine; see sine + -oid.(American Heritage® Dictionary of the English Language, Fourth Edition)