|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a fool or simpleton; ninny.|
|1.||the state or fact of existing; existence|
|2.||essential nature; self: she put her whole being into the part|
|3.||something that exists or is thought to exist, esp something that cannot be assigned to any category: a being from outer space|
|4.||a person; human being|
|5.||Compare becoming (in the philosophy of Aristotle) actuality|
|See also subsistence the philosophical problem arising from the fact that the ability to refer appears to presuppose the existence of whatever is referred to, and yet we can talk intelligibly about nonexistent objects|
The symbol for the element beryllium.
The symbol for beryllium.
|beryllium (bə-rĭl'ē-əm) Pronunciation Key
A hard, lightweight, steel-gray metallic element of the alkaline-earth group, found in various minerals, especially beryl. It has a high melting point and is corrosion-resistant. Beryllium is used to make sturdy, lightweight alloys and aerospace structural materials. It is also used as a neutron moderator in nuclear reactors. Atomic number 4; atomic weight 9.0122; melting point 1,278°C; boiling point 2,970°C; specific gravity 1.848; valence 2. See Periodic Table.