Paliform crown

(1) The tread area of a tire. (2) The top part of the head of a piston. (3) The outward curvature of an apparently flat sheet metal panel. (4) The curve or convex surface of a ...

crown

Biotechnology; Genetic engineering

The region at the base of the stem of cereals and forage species from which tillers or branches arise. In woody plants, the root-stem junction. In forestry, the top portions of ...

crown

Construction; Framing

The upward bow along the length of a board. Deck, Joist and Rafter boards are set on end with the crown up. Over time, the crown will sag and the board will straighten.

nodulose

Natural environment; Coral reefs

With small nodules, knobs or swellings.

fissure

Natural environment; Coral reefs

A deep and narrow depression cutting across the reef front with origins relating to jointing planes in the reef limestone or non-limestone bedrock.

damselfish

Natural environment; Coral reefs

A large family (Pomacentridae) of bony fishes which are abundant and common inhabitants of coral reefs. They possess robust, deep, and laterally compressed bodies. The majority of ...

complementary resources

Natural environment; Coral reefs

A pair of resources for which consumption by the consumer of one resource reduces its requirement for the other.

antennule

Natural environment; Coral reefs

A small antenna, especially the first pair of antennae in crustaceans.

odontophore

Natural environment; Coral reefs

A tooth-bearing structure found in most mollusks, except bivalves. It consists of several muscles and a cartilage which support the radula and radula sac; the term is also applied ...