blast

(redirected from blasted off)
Also found in: Dictionary, Thesaurus, Legal, Idioms, Encyclopedia.

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

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]
References in periodicals archive ?
Shortly after 8.30am (BST) yesterday, the Californian businessman, strapped into the Soyuz rocket, blasted off from Central Asia under clear skies.
The liftoff was marred slightly when a small panel broke off from the rear of the shuttle and struck an engine just before the shuttle blasted off, NASA officials said.
Summary: Washington, May 14, 2010, SPA -- The US space shuttle Atlantis blasted off on its final mission today from Cape Canaveral, Florida, thrusting through a perfect deep blue sky and carrying six astronauts to the International Space Station, according to dpa.
The mission, which is expected to last three days, blasted off in clear skies in north-western China and is the country's most challenging since it first launched a person into space in 2003.
Shuttle Endeavour and a crew of seven blasted off from Cape Canaveral, Florida, early yesterday to begin what is expected to be the longest international space station mission ever.
A FORMER teacher blasted off into space after a wait of more than 20 years.
His remains should have blasted off after his cremation, but misfires led to the delay.
A ROCKET blasted off from Cape Canaveral yesterday to launch a sophisticated NASA probe to look for water on Mars.
As flash is blasted off the parts, the spent media and flash are evacuated through a blower system that moves the material to the overhead cyclone, eliminating the troublesome screw conveyor to move the material quickly.
After a string of bullets were blasted off, he dived back into the car and the driver accelerated away towards Dungannon.
The only dust with steel-grit sanding comes from the dirt being blasted off the surface being cleaned.
The Soyuz blasted off on Wednesday from Russia's manned space launch complex in Baikonur, Kazakhstan.