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A curved ridge in the floor of the leteral ventricle of the brain; the calcar avis, hippocampus minor, or ergot.

Having a spur, as the flower of the toadflax and larkspur; spurred. Gray.

consisting of, or containing, calcareous and argillaceous earths.

Consisting of, or containing, lime and bitumen. Lyell.

Consisting of, or containing calcareous and siliceous earths.

Partaking of the nature ofcalcite or calcium carbonate; consisting of, or containg, calcium carbonate or carbonate of lime. Clcareous spar. See as Calcite.

Quality of being calcareous.

Lime-yielding; calciferous

Pertaining to, or situated near, the calcar of the brain.

Consisting of, or containing, clay and calcareous earth.

Having two spurs, as the wing or leg of a bird.

Formed of a mixture of horny and calcareous materials, as some shells and corals.

Partaking of the nature of, or consisting of, mica and lime; -- applied to a mica schist containing carbonate of lime.

Half or partially calcareous; as, a semicalcareous plant.

Consisting of silica and calcareous matter.

One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species of Synapta. Anchor ice. See under Ice. -- Anchor ring. (Math.) Same as Annulus, 2 (b). -- Anchor stock (Naut.), the crossbar at the top of the shank at right angles to the arms. -- The an…

ts hot springs, which has given its name to various objects. Bath brick, a preparation of calcareous earth, in the form of a brick, used for cleaning knives, polished metal, etc. -- Bath chair, a kind of chair on wheels, as used by invalids at Bath. "People walked out, or drove out, or were pushed out in their Bath ch…

A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell o…

in is specially affected; any acute cerebral affection attended by fever. -- Brain sand, calcareous matter found in the pineal gland.

, immediately succeeding the Cambrian period. The name alludes to the peculiar mixture of calcareous and siliceous characteristics in many of the beds. See the Diagram under Grology.