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phosphorus
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phosphorus
n.
nonmetallic chemical element
| English Wikipedia - The Free Encyclopedia | Download this dictionary |
Phosphorus
Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but due to its high reactivity, phosphorus is never found as a free element on Earth. Instead phosphorus-containing minerals are almost always present in their maximally oxidised state, as inorganic phosphate rocks.
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| WordNet 2.0 | Download this dictionary |
Phosphorus
Noun
1. a planet (usually Venus) seen just before sunrise in the eastern sky
(synonym) morning star, daystar
(hypernym) planet
phosphorus
Noun
1. a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
(synonym) P, atomic number 15
(hypernym) chemical element, element
(substance-holonym) apatite
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phosphorus
n.
fosfor
| Webster's Revised Unabridged Dictionary (1913) | Download this dictionary |
Phosphorus
(n.)
The morning star; Phosphor.
The morning star; Phosphor.
(n.)
Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies.
Hence, any substance which shines in the dark like phosphorus, as certain phosphorescent bodies.
(n.)
A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0.
A poisonous nonmetallic element of the nitrogen group, obtained as a white, or yellowish, translucent waxy substance, having a characteristic disagreeable smell. It is very active chemically, must be preserved under water, and unites with oxygen even at ordinary temperatures, giving a faint glow, -- whence its name. It always occurs compined, usually in phosphates, as in the mineral apatite, in bones, etc. It is used in the composition on the tips of friction matches, and for many other purposes. The molecule contains four atoms. Symbol P. Atomic weight 31.0.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
