a fine layer that occurs in sedimentary rocks
the flat expanded part of a foliage leaf or leaflet
either of two broad, flat plates of bone of a vertebra that is fused with and extends from the pedicle to the median line of the neural arch to form the base of the spinous process and that along with the pedicle forms the posterior part of the vertebral foramen
one of the narrow thin parallel plates of soft vascular sensitive tissue that cover the flesh within the wall of a hoof
A large expanse of exposed stable Precambrian rock.
A wide and relatively low-profiled volcano, usually composed entirely of lava flows.
Parts at the front and back of a vehicle which are meant to absorb the impact of a collision
A broad piece of defensive armor, held in hand, formerly in general use in war, for the protection of the body.
One who protects or defends.
A spot resembling, or having the form of a shield.
A sign or symbol, usually containing numbers and sometimes letters, identifying a highway route.
A framework used to protect workmen in making an adit under ground, and capable of being pushed along as excavation progresses.
The escutcheon or field on which are placed the bearings in coats of arms.
A field of energy that protects or defends.
In lichens, a hardened cup or disk surrounded by a rim and containing the fructification, or asci.
A police badge.
To protect, to defend.
to protect from the influence of
To shelter; to protect oneself.