Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Composed of an
aggregate of very smallcrystals inrandom orientations
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective composed of aggregates of crystals
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The other thing is the basic technology, it's called polycrystalline silicon; and although there are competitive methodologies for making solar cells, namely thin film and various types of mirrors that rotate and track or concentrate sunlight, it still looks like the poly is the material of choice because it's so mature with about 65\% of the total solar market.
pfblogs.org: The Ad-Free Personal Finance Blogs Aggregator 2008
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This is especially the case with downstream tools such as polycrystalline diamond drills, which cost between GBP800 and GBP1600 depending on the version chosen.
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The main raw material in a solar cell, polycrystalline silicon, is made in the U.S. and exported to China.
Carl Pope: China Should Play by the Rules, and America Should Play to Win Carl Pope 2011
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The main raw material in a solar cell, polycrystalline silicon, is made in the U.S. and exported to China.
Carl Pope: China Should Play by the Rules, and America Should Play to Win Carl Pope 2011
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The main raw material in a solar cell, polycrystalline silicon, is made in the U.S. and exported to China.
Carl Pope: China Should Play by the Rules, and America Should Play to Win Carl Pope 2011
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ELA solar car equipped with Sharp polycrystalline residential solar cells will be the lead car in the 2nd Sotokoto Safari Marathon on May 23, 2010 in Nairobi.
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ELA solar car equipped with Sharp polycrystalline residential solar cells will be the lead car in the 2nd Sotokoto Safari Marathon on May 23, 2010 in Nairobi.
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A number of different sensors have been developed, based on triggers that include direct DNA damage, the inactivation of bacterial spores and bacteriophages, photochemical reactions involving vitamin D photosynthesis, and the accumulation of polycrystalline uracil.
Long-term change and variability in surface UV irradiance in the Arctic 2009
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The two main focuses of Taiwan's solar energy industry are that its energy conversion rates of 15-16% for polycrystalline silicon poly-Si solar cells are lower than international levels of 17%, and self-sufficiency of poly-Si is low, the sources indicated.
Taiwan to fund solar tech Michael Turton 2009
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The two main focuses of Taiwan's solar energy industry are that its energy conversion rates of 15-16% for polycrystalline silicon poly-Si solar cells are lower than international levels of 17%, and self-sufficiency of poly-Si is low, the sources indicated.
Archive 2009-03-01 Michael Turton 2009
qroqqa commented on the word polycrystalline
Further clues might come now that scientists have grown the first single crystals of rare-earth iron arsenides, which are much purer than the polycrystalline materials synthesised so far.
—New Scientist, 16 August 2008
August 23, 2008