notch

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Related to sigmoid notch: submandibular fossa, malar process

notch

US and Canadian a narrow pass or gorge
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

notch

[näch]
(electronics)
Rectangular depression extending below the sweep line of the radar indicator in some types of equipment.
(engineering)
A V-shaped indentation or cut in a surface or edge.
(geology)
A deep, narrow cut near the high-water mark at the base of a sea cliff.
(geography)
A narrow passage between mountains or through a ridge, hill, or mountain.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

notch

A cutout in a log or timber, usually at or near one of its ends, that is used to form a rigid joint when mated with another appropriately cutout log or timber at right angles to it; for example, at the corners of a log cabin or log house. See corner notch, diamond notch, double-saddle notch, dovetail notch, half-cut notch, half-dovetail notch, halved-and-lapped notch, lap notch, log notch, round notch, saddle notch, single notch, single-saddle notch, square notch, V-notch.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
(13) As performed today, a subperiosteal resection of the entire distal ulna is performed from just proximal to the sigmoid notch. The Darrach procedure has been advocated for low-demand, elderly patients; however, it can also be used in the younger patient if other options are not available.
Additionally, it prevents painful erosion of the sigmoid notch that can be seen following ulnar head arthroplasty.
Periprosthetic bone resorption and sigmoid notch erosion around ulnar head implants: a concern?
Through the same graft harvested wound on volar aspect distal radius approached and a vertical tunnel made 3mm above and lateral to sigmoid notch. One end of the graft passed through this tunnel and retrieved on the dorsum through a 2.5 cms skin incision lying over the ulna.
We confirmed our diagnosis with plain radiography and assessed the status of sigmoid notch and associated TFCC injuries using MRI in all our patients.
Motion at the DRUJ occurs through the ulna, seated within the sigmoid notch, and the gliding undersurface of the fibrocartilaginous disk of the triangular fibrocartilage complex (TFCC) (Fig.
Through viscoelastic forces, the deep head of the pronator actively compresses the ulnar head into the sigmoid notch in pronation and acts to do the same, but in lesser magnitude, during supination.
Dorsal dislocations of the ulna present with a dorso-ulnar prominence with a block to supination; in volar dislocations, a volar-ulnar prominence is associated with a palpable radial sigmoid notch and a block to pronation.