blast cell

an immature precursor cell; for example, erythroblast, lymphoblast, neuroblast.
See also: -blast.

blast cell

n.1. A precursor of a human blood cell.2. An immature, undifferentiated cell.

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 cell

Blast Hematology An immature cell in the BM's proliferative compartment, and earliest identifiable precursor of a cell line–erythroblast, lymphoblast, megakaryoblast and myeloblast; BCs are large–15-20 µm, have high N:C ratios, nuclei with fine, lacy to granular chromatin that contain one or more prominent nucleoli, basophilic, agranular cytoplasm, and abundant RNA, and actively synthesize DNA; BCs represent up to 5% of BM cells

blast cell

(blast sel) An immature precursor cell; e.g., erythroblast, lymphoblast, neuroblast.
See also: -blast

blast cell

An immature or primitive cell from which mature, differentiated cells are derived. The term refers mainly to the progenitors of blood cells (haemopoietic cells). The presence of these in the circulating blood is a feature of acute leukaemias.

单词	blast cell
释义	blast cell blast cell n.1. A precursor of a human blood cell.2. An immature, undifferentiated cell. [-blast + cell.] blast′ cell` n. Biol. any undifferentiated or immature cell. [1950–55; < Greek blastós; see blasto-] blast cell blast cell [′blast ‚sel] (histology) An undifferentiated precursor of a human blood cell in the reticuloendothelial tissue. blast cell blast cell an immature precursor cell; for example, erythroblast, lymphoblast, neuroblast. See also: -blast. blast cell n.1. A precursor of a human blood cell.2. An immature, undifferentiated cell. 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 cell Blast Hematology An immature cell in the BM's proliferative compartment, and earliest identifiable precursor of a cell line–erythroblast, lymphoblast, megakaryoblast and myeloblast; BCs are large–15-20 µm, have high N:C ratios, nuclei with fine, lacy to granular chromatin that contain one or more prominent nucleoli, basophilic, agranular cytoplasm, and abundant RNA, and actively synthesize DNA; BCs represent up to 5% of BM cells blast cell (blast sel) An immature precursor cell; e.g., erythroblast, lymphoblast, neuroblast. See also: -blast blast cell An immature or primitive cell from which mature, differentiated cells are derived. The term refers mainly to the progenitors of blood cells (haemopoietic cells). The presence of these in the circulating blood is a feature of acute leukaemias. LegalSeeCellFinancialSeecellThesaurusSeemyeloblast
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blast cell

blast cell

blast′ cell`

blast cell

blast cell

blast cell

blast cell

blast cell

BLAST

blast cell

blast cell

blast cell