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Related to blasting: Explosives, Sand blasting, Grit blasting

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 ?
Over the past 18 months SMI has undertaken comprehensive trials in South African mines, where customers have been able to achieve superior blasting efficiencies.
According to one foundry that still uses silica to clean hard-to-reach areas and ensure complete stripping of coatings, dry ice blasting has resulted in up to a 40% increase in die life.
According to Parks, however, it was recently discovered that blasting will be required for a project slated at Fireworks Hill, and other impending projects may require use of explosives.
Independent tests by Wah Chang confirmed the superiority of ice blasting over the chemical cleaning process previously used.
Kolb, president and chief executive officer of Maxwell: ``Over the past two years, excellent results were achieved in preliminary rock and concrete blasting tests with our electrothermal chemical cartridge.
The Blast Wheel - Efficient blasting begins with consistent operation of the blast wheel.
These deposits could not be blown out, making it necessary to revert back to sand blasting and the tedious knifing process.
Headquartered in Garland, Texas, ABS Blast continues to be the leading manufacturer of abrasive blasting technology for many leading industries including Wind Energy manufacturers.
The main advantage of dry ice pellet blasting is the ability to clean hot molds in-place.
The workers still wear masks and blasting hoods, but the environment is much cleaner, he says.
Graycor Blasting Company, Incorporated (GBC) began using explosives for controlled blasting in 1925 and today is one of the top blasting experts in the world with six offices throughout Illinois, Wisconsin, Colorado, Florida and Iowa.
In the past year ABS has designed, developed and installed state of the art abrasive blasting systems for wind energy manufacturers Trinity Structural Towers, Inc.