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blast

 [blast]
1. an immature stage in cellular development before appearance of the definitive characteristics of the cell; used also as a word termination, as in ameloblast and trophoblast.
blast cell.
2. the wave of air pressure produced by the detonation of high-explosive bombs or shells or by other explosions; it causes pulmonary damage and hemorrhage (lung blast, blast chest), laceration of other thoracic and abdominal viscera, ruptured eardrums, and effects in the central nervous system.

blast

(blast),
General term for immature or precursor cell.
[G. blastos, germ]

blast

(blast)
1. an immature stage in cellular development before appearance of the definitive characteristics of the cell; used also as a word termination (see -blast ).
2. blast cell (2).

blast

(blast) the wave of air pressure produced by the detonation of high-explosive bombs or shells or by other explosions; it causes pulmonary concussion and hemorrhage (lung blast, blast chest), laceration of other thoracic and abdominal viscera, ruptured eardrums, and minor effects in the central nervous system.

blast

1 a primitive cell, such as an embryonic germ cell.
2 a cell capable of building tissue, such as an osteoblast in growing bone.

BLAST

Basic Local Alignment Search Tool. A nucleic acid- and protein-sequence comparison algorithm which is used to find matches in gene sequences and to search sequence databases for optimal local alignments to a query sequence.

BLAST uses a heuristic algorithm, seeking local alignments and creating a matrix of similarity scores for all possible pairs of residues, defining high-scoring segments, statistically evaluating the significance of the results and detecting relationships among sequences which share only isolated regions of similarity.

blast

noun Hematology A general term for a primitive blood cell. See Blast cell, Blast crisis.

blast

(blast)
General term for immature or precursor cell.
[G. blastos, germ]

BLAST (Basic Local Alignment Search Tool)

a sequence comparison algorithm used to search DNA or PROTEIN databases. For example, BLASTN is used for homology searching to compare nucleotide sequences.

The query sequence is entered and compared with a nucleotide sequence database.

blast

(blast)
General term for immature or precursor cell.
[G. blastos, germ]

blast

1. an immature stage in cellular development before appearance of the definitive characteristics of the cell; used also as a word termination, as in ameloblast, etc.
2. the wave of air pressure produced by the detonation of high-explosive bombs or shells or by other explosions; it causes pulmonary damage and hemorrhage (lung blast, blast chest), laceration of other thoracic and abdominal viscera, ruptured eardrums, and effects in the central nervous system.

blast cells
the precursor cells of bone marrow. See also myeloblast, monoblast, erythroblast, megakaryoblast.
References in periodicals archive ?
The coal acts as a fuel in these mini blast furnaces,
This technology will only be practical in relative proximity to a blast furnace, of which there are three in Australia,' he says.
Our blast furnace gas is a fraction of the cost of natural gas, so we use some of the blast furnace gas to help heat our blast furnace stoves," said Meloche.
Other areas of the investigation include the history and maintenance of blast furnace number five and a substantial amount of information has been gathered which is in the process of being analysed.
The 1997 EPIC/APC report titled Automobile Shredder Residue: Its Application in Steel Mill Blast Furnaces looked into the use of ASR as a potential fuel source for steel mill blast furnaces.
The Redcar Blast Furnace Wake starts at 7pm in the Linthorpe Hotel on the corner of The Crescent and Roman Road in Linthorpe.
NLMK Group, the largest steelmaker in Russia and one of the most efficient in the world, made a saving of 425 million rubles in 2014 through the use of pulverized coal injection (PCI) technology at two blast furnaces at its Novolipetsk production site in Lipetsk.
The company said that the Ashland blast furnace is now operating at its full capacity, which is significantly above pre-outage levels.
Tata Steel in Europe's managing director and chief executive Dr Karl-Ulrich Kohler said the fall in profits was down to "sliding demand" but that the resumption of production at Blast Furnace No.
On Saturday, the blast furnace will be lit from three nine metre high lighting towers as the centrepiece of the Fire and Steel Festival.
Mechel OAO (NYSE: MTL), one of the leading Russian mining and metals companies, announces that blast furnace No.
The company earlier said it will bring forward refurbishment of a blast furnace in Oita Prefecture to February from March as originally scheduled.