shoulder (redirected from shoulder joint)

shoulder

1. the part of the vertebrate body where the arm or a corresponding forelimb joins the trunk: the pectoral girdle and associated structures

2. the joint at the junction of the forelimb with the pectoral girdle

3. the strip of unpaved land that borders a road

4. Engineering a substantial projection or abrupt change in shape or diameter designed to withstand thrust

5. Photog the portion of the characteristic curve of a photographic material indicating the maximum density that can be produced on the material

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shoulder [′shōl·dər]

(anatomy)

The area of union between the upper limb and the trunk in humans.

The corresponding region in other vertebrates.

(design engineering)

The portion of a shaft, a stepped object, or a flanged object that shows an increase of diameter.

(engineering)

A projection made on a piece of shaped wood, metal, or stone, where its width or thickness is suddenly changed.

(geology)

A short, rounded spur protruding laterally from the slope of a mountain or hill.

The sloping segment below the summit of a mountain or hill.

A bench on the flanks of a glaciated valley, located at the sharp change of slope where the steep sides of the inner glaciated valley meet the more gradual slope above the level of glaciation.

A joint structure on a joint face produced by the intersection of plume-structure ridges with fringe joints.

(graphic arts)

That part of a plate or type that extends beyond the actual printing surface.