Description: The octopus is a mollusk in the class Cephalopoda. Cephalopoda means âhead footâ in Greek, and in this class of organisms the head and foot are merged. A ring of eight equally-long arms surround the head. The arms are covered on the underside with suction cups that are very sensitive to touch and taste.
Light fixture. A light fixture (US English), light fitting (UK English), or luminaire is an electrical device used to create artificial light by use of an electric lamp. All light fixtures have a fixture body and a light socket to hold the lamp and allow for its replacement.
In scientific writing, Stephen J. Hawking is a luminary. People look up to this well-known scientist and author for his knowledge and insight. Although luminary can mean an object or celestial body that gives off light, you'll often hear people talk about parties at which there were many luminaries in attendance. In this case, luminary means celebrity or well-known person in sports or politics, science or the arts.