SIGMOIDAL • DICTIONARY ONE.COM • Definition of Sigmoidal

Add this Dictionary
to your website!
See more options...

Listen

adjective

Sigmoidal, Sigmoid adj. Curved in two directions, like the letter S, or the Greek sigma.

Sigmoid flexure (Anat.), the last curve of the colon before it terminates in the rectum.

Sigmoid valves. (Anat.) See Semilunar valves, under Semilunar.

See images of 'Sigmoidal'

Etymology of 'Sigmoidal'

Collaborative International Dictionary of English 0.48

Share |

Add this dictionary
to your browser search bar

"Sigmoidal" Quotes from Famous Books

... a bottom not more than five miles up the river from his own ranch. Roosevelt rode there promptly. The trail led almost due north, again and again crossing the Little Missouri which wound in wide sigmoid curves, now between forbidding walls of crumbling limestone and baked clay, now through green acres of pasture-land, or silvery ...

— Roosevelt in the Bad Lands • Hermann Hagedorn

... source of intra-cranial infection is chronic suppuration of the middle ear and mastoid antrum, the organisms passing from these cavities to the interior of the skull directly through a perforation of the tegmen tympani or of the wall of the sigmoid groove, or being carried in the blood stream by the emissary veins. In some cases the infection travels along the sheaths of the ...

— Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. • Alexander Miles

Words linked to "Sigmoidal" : sigmoid flexure, sigmoid