hinge line

Often, the fold axis is the same as the hinge line.

The beaks are full, central and slightly elevated above the hinge line.

For storage and road transport the wings folded at two hinge lines.

The hinge line is straight and spans the entire width of the shell.

The beaks are moderately inflated and project beyond the hinge line.

These have a straight hinge line which is exactly in line with the umbones.

There are no teeth on the hinge line.

Typically both shells (or valves) are symmetrical along the hinge line.

The glochidia are semi-circular and have a straight hinge line without hooks.

The major F1 folds are isoclinal, with near-horizontal hinge lines.

It is greatly elongated along the hinge line, which extends outward to form sharp points.

They were composed of two halves that were fused at a hinge line.

The two valves usually articulate with one another using structures known as "teeth" which are situated along the hinge line.

The glacier has a hinge line, the point at which its projecting tongue leaves the sea bed and starts to float.

Hinge teeth help lock the valves along the hinge line.

Hinge line The boundary between the recharge and discharge zone of an aquifer.

Feature a unique, hinged line gate that allows the line to pass through freely.

The hinge line is simple and arched.

In the authors' opinion, the U-shaped gut extended beyond the hinge line and outside the smaller shell.

Analysis suggested that a shockwave was forming along the elevator's hinge line, leaving it ineffective.

The beaks are low, barely raised above the hinge line and located in the anterior quarter of the shell.

Like the ligament, the hinge teeth are along the hinge line of the shell.

Beaks are centrally placed, curved inward, and elevated well above the hinge line.

All ark shells have a long straight hinge line with a single row of numerous small and unspecialized "teeth".

The anterior hinge line curves more steeply downwards than the posterior.