(n): any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
(n): substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
(n): the compass point midway between south and east; at 135 degrees
(n): any of 32 horizontal directions indicated on the card of a compass
A ancient zither-like Chinese instrument.
Chemical element symbol for Selenium.