a prefix occurring in loanwords from Latin, where it meant “apart”:
The symbol for the element selenium.
The symbol for selenium.
A nonmetallic element that occurs in a gray crystalline form, as a red powder, or as a black glassy material. It is highly photosensitive and can be used to convert light into electricity. Its ability to conduct electricity also increases with higher exposure to light. For these reasons selenium is used in photocopying technology, photography, and solar cells. Atomic number 34; atomic weight 78.96; melting point 217°C; boiling point 684.9°C; specific gravity (gray) 4.79; (red) 4.5; (black) 4.28; valence 2, 4, or 6. See Periodic Table.
1. software engineering.
2. IBM Systems Engineer.
The country code for Sweden.
noun 1. the salt waters that cover the greater part of the earth’s surface. 2. a division of these waters, of considerable extent, more or less definitely marked off by land boundaries: the North Sea. 3. one of the seven seas; ocean. 4. a large lake or landlocked body of water. 5. the degree or […]
noun, Nautical. 1. any of various devices, as a drogue, that have great resistance to being pulled through the water and are dropped forward of a vessel at the end of a cable to hold the bow into the wind or sea during a storm. noun 1. (nautical) any device, such as a bucket or […]
noun 1. any sedentary marine animal of the phylum Coelenterata, having a columnar body and one or more circles of tentacles surrounding the mouth. noun 1. any of various anthozoan coelenterates, esp of the order Actiniaria, having a polypoid body with oral rings of tentacles See also actinia sea anemone Any of numerous, often brightly […]
- Sea aster
noun 1. a composite perennial plant of salt marshes, Aster tripolium, having yellow and purple flowers like those of the related Michaelmas daisy