boron
n. chemical element | ||||
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Boron Definition from Computer & Internet Dictionaries & Glossaries
| Integrated Circuit Terminology |
Boron
atomic symbol, B, boron is the 5th element in the periodic table (atomic number 5) with an atomic weight of 10.81. A group III element boron is an acceptor in silicon, i.e., makes silicon P-type. Boron is the most commonly used P-type dopant and has a relatively high diffusivity compared to arsenic and antimony, common N-type dopants, and a diffusivity and similar to phosphorus, another common N-type dopant.
atomic symbol, B, boron is the 5th element in the periodic table (atomic number 5) with an atomic weight of 10.81. A group III element boron is an acceptor in silicon, i.e., makes silicon P-type. Boron is the most commonly used P-type dopant and has a relatively high diffusivity compared to arsenic and antimony, common N-type dopants, and a diffusivity and similar to phosphorus, another common N-type dopant.
Boron Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Boron
(n.)
A nonmetallic element occurring abundantly in borax. It is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and some other minerals. Atomic weight 10.9. Symbol B.
(n.)
A nonmetallic element occurring abundantly in borax. It is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and some other minerals. Atomic weight 10.9. Symbol B.
| WordNet 2.0 |
boron
Noun
1. a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
(synonym) B, atomic number 5
(hypernym) chemical element, element
(substance-holonym) kernite
Noun
1. a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
(synonym) B, atomic number 5
(hypernym) chemical element, element
(substance-holonym) kernite
| hEnglish - advanced version |
boron
boron
\bo"ron\ (bō"r&obreve;n), n. [see borax.] (chem.) a nonmetallic element occurring abundantly in borax. it is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. it occurs in nature also in boracite, datolite, tourmaline, and some other minerals. atomic weight 10.9. symbol b.
boron
\bo"ron\ (bō"r&obreve;n), n. [see borax.] (chem.) a nonmetallic element occurring abundantly in borax. it is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. it occurs in nature also in boracite, datolite, tourmaline, and some other minerals. atomic weight 10.9. symbol b.
Boron Definition from Medicine Dictionaries & Glossaries
| Dictionary of Medicine (Shahram) |
B
chemical symbol for
boron
chemical symbol for
boron
| Hepatitis Central (TM) Liver Disease Medical Glossary |
Boron
Mineral that may play a role in maintaining strong bones, affecting calcium and magnesium metabolism and proper membrane function
Mineral that may play a role in maintaining strong bones, affecting calcium and magnesium metabolism and proper membrane function
Boron Definition from Science & Technology Dictionaries & Glossaries
| Mineralogy Database |
Boron (B )
Atomic Mass : 10.81
Atomic Number : 5
Name Origins: Arabic, buraq
Year Discovered : 1808
Discovery Credits : L. J. Lissac and L. J. Thenard in Paris, France and Sir Humphrey Davy in London, UK.
More Details
Atomic Mass : 10.81
Atomic Number : 5
Name Origins: Arabic, buraq
Year Discovered : 1808
Discovery Credits : L. J. Lissac and L. J. Thenard in Paris, France and Sir Humphrey Davy in London, UK.
More Details
| Horticulture Solutions Series |
BORON
Boron affects the absorption of other nutrients. It also affects the germination of the pollen tube once the pollen grains land on the stigma. Without germination, the seeds are not fertilized and fruits abort.
Boron affects the absorption of other nutrients. It also affects the germination of the pollen tube once the pollen grains land on the stigma. Without germination, the seeds are not fertilized and fruits abort.
| Chemistry of the Elements |
Boron
Name: boron
Symbol: B
Atomic number: 5
Atomic weight: 10.811 (7) g m r
Group in periodic table: 13
Group name:
Period in periodic table: 2
Block in periodic table: p-block
CAS registry ID: 7440-42-8
Boron is a Group 13 element. Boron has properties which are borderline between metals and non-metals. It is a semiconductor rather than a metallic conductor. Chemically it is closer to silicon than to aluminium, gallium, indium, and thallium.
Crystalline boron is inert chemically and is resistant to attack by boiling HF or HCl. When finely divided it is attacked slowly by hot concentrated nitric acid.
Name: boron
Symbol: B
Atomic number: 5
Atomic weight: 10.811 (7) g m r
Group in periodic table: 13
Group name:
Period in periodic table: 2
Block in periodic table: p-block
CAS registry ID: 7440-42-8
Boron is a Group 13 element. Boron has properties which are borderline between metals and non-metals. It is a semiconductor rather than a metallic conductor. Chemically it is closer to silicon than to aluminium, gallium, indium, and thallium.
Crystalline boron is inert chemically and is resistant to attack by boiling HF or HCl. When finely divided it is attacked slowly by hot concentrated nitric acid.
| General Chemistry Glossary |
Boron Definition from Arts & Humanities Dictionaries & Glossaries
| Tolkien´s Glossary |
Boron
Father of Boromir. 177
Father of Boromir. 177
| Middle-earth v2.2b |
Boron
Father of Boromir of Ladros.
Father of Boromir of Ladros.
Boron Definition from Government Dictionaries & Glossaries
| US Zip Codes |
93516
State: CALIFORNIA
City: BORON
State: CALIFORNIA
City: BORON
Boron Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Boron
rak-tukh
rak-tukh
Boron Definition from Business & Finance Dictionaries & Glossaries
| Company Info: Ticker, Name, Description |
BLPG
Boron, LePore & Associates, Inc.
Exchange: Nasdaq
Provides outsourced promotional, marketing, educational and field sales force logistics services to the pharmaceutical industry.
Boron, LePore & Associates, Inc.
Exchange: Nasdaq
Provides outsourced promotional, marketing, educational and field sales force logistics services to the pharmaceutical industry.
Boron Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Boron
Boron (IPA: ) is a chemical element with atomic number 5 and the chemical symbol B. A trivalent compound containing boron occurs abundantly in the ore borax. Boron is never found free in nature, and is a metalloid.
Several allotropes of boron exist; amorphous boron is a brown powder, though crystalline boron is black, hard (9.3 on Mohs' scale), and a weak conductor at room temperature.
Elemental boron is used as a dopant in the semiconductor industry, while boron compounds play important roles as light structural materials, nontoxic insecticides and preservatives, and reagents for chemical synthesis.
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