grinding surface

The resulting hard, smooth concrete floor made a good grinding surface.

As hard as it was, the important grinding surface wore .

Manual burr grinders are turned by hand, rotating one grinding surface against the other.

The edges in the grinding surface were elaborately sinuous to better break down the grasses on which the animal fed.

In some cases the grinding surfaces of the stones fit into each other, the upper stone being slightly concave and the lower one convex.

In general, however, crustaceans possess paired mandibles with opposing biting and grinding surfaces.

The pharyngeal teeth are long, straight, and knife-shaped; the dorsal part of each tooth has a narrow grinding surface.

The mouth opened, showing flat grinding surfaces, and the little creature hissed, emitting a cloud of greenish gas.

They became long (as much as 100 mm), roughly cubical molars equipped with flat grinding surfaces.

A horse's incisors, premolars, and molars, once fully developed, continue to erupt as the grinding surface is worn down through chewing.

In comparison to earlier proboscids, Gomphotherium had far fewer molars; the remaining ones had high ridges to expand their grinding surface.

The molars were well adapted to grinding and resembled those of capybaras with an S-shaped pattern on the grinding surfaces.

The immediate interior was lined with a grinding surface composed of pinkish-white slabs of translucent cartilage, hexagonal in shape.

Straight cup wheels are an alternative to cup wheels in tool and cutter grinders, where having an additional radial grinding surface is beneficial.

The not-mammoth's teeth were cones of enamel-not flat grinding surfaces like Longtusk's, but sharp, almost like a cat's cruel fangs.

Ornithopods like iguanodon had teeth arranged in interlocking 'magazines' with rasp-like grinding surfaces, lying parallel to one another in the jaw.

They are large and hardened, shaped like pinchers, with cutting surfaces on the distal portion and chewing or grinding surfaces basally.

Over time, the diamond in the resin grinding surface of the Rock Abrasion Tool wore down, after which the device could only be used to brush targets.

In this type the upper stone is hemispherical, or bun-shaped, with a central conical hopper to hold the grain that falls down a hole to the grinding surface.

It had expanded molars that wore down quickly, much like those of ungulates, and its posterior premolars acted like molars to extend the grinding surface.

Their thickness replicates the dimensions of millstones, but the would-be grinding surfaces are etched with spirals, a row of dots or symbols resembling Egyptian hieroglyphics.

The trucks are a composed of a hard metal without lubricant or bearings on the grinding surface, so they literally do grind on the objects they slide across.

They appear to be ancient fossil grinding molars with one end showing holes for dental roots to the jawbone, and the other possible grinding surface, like for ruminants.

In some cases, sharp edges can occur on the outside of the upper molars and the inside of the lower molars, as they are unopposed by an opposite grinding surface.

He worked the ground as he walked, tearing up grass, herbs and sedge with his trunk and pushing them into his mouth between the flat grinding surfaces of his teeth.