dict.md logo
Choose languages of interest
SELECT >>
English
German
French
Advertisement:
Definition
 
enEnglish
Blast Crisis definition: An advanced phase of chronic myelogenous leukemia, characterized by a rapid increase in the proportion of immature white blood cells (blasts) in the blood and bone marrow to greater than 30%.
blast phase definition: The phase of chronic myelogenous leukemia in which the number of immature, abnormal white blood cells in the bone marrow and blood is extremely high.
Blast Phase Chronic Myelogenous Leukemia definition: An advanced phase of chronic myelogenous leukemia. It is characterized by: 1. the presence of blasts in the peripheral blood or bone marrow that are at least 20% of the peripheral blood white cells or of the nucleated cells in the bone marrow respectively, or 2. an extramedullary proliferation of blasts, and/or 3. when there are large aggregates and clusters of blasts in the bone marrow biopsy specimen (adapted from WHO, 2001).
M Phase definition: The period of the cell cycle when CELLS divide their nucleus and cytoplasm.
Pregnancy Trimester, First definition: The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation.
G0 Phase definition: A quiescent state of cells during G1 PHASE.
G1 Phase definition: The period of the CELL CYCLE preceding DNA REPLICATION in S PHASE. Subphases of G1 include "competence" (to respond to growth factors), G1a (entry into G1), G1b (progression), and G1c (assembly). Progression through the G1 subphases is effected by limiting growth factors, nutrients, or inhibitors.
G1 phase definition: A cell cycle process comprising the steps by which a cell progresses through G1 phase, one of two 'gap' phases in the cell cycle; G1 is the interval between the completion of DNA segregation (usually by mitosis or meiosis) and the beginning of DNA synthesis. [GOC:ai, GOC:dph, GOC:mah]
G1 Phase definition: Phase of the cell cycle preceding DNA synthesis (Gap 1 phase). The subphases of G1 include competence, entry (G1a), progression (G1b), and assembly (G1c), based on the effects of limiting growth factors, nutrients, or inhibitors.
G2 Phase definition: The period of the CELL CYCLE following DNA synthesis (S PHASE) and preceding M PHASE (cell division phase). The CHROMOSOMES are tetraploid in this point.
G2 phase of mitotic cell cycle definition: A cell cycle process comprising the steps by which a cell progresses through G2 phase, one of two 'gap' phases in the mitotic cell cycle; G2 is the interval between the completion of DNA synthesis and the beginning of mitosis. [GOC:dph, GOC:mah, ISBN:0815316194]
G2 phase definition: A cell cycle process comprising the steps by which a cell progresses through G2 phase, one of two 'gap' phases in the cell cycle; G2 is the interval between the completion of DNA synthesis and the beginning of DNA segregation (usually by mitosis or meiosis). [GOC:ai, GOC:dph, GOC:mah]
G2 Phase definition: Phase of the cell cycle following DNA synthesis and preceding mitosis (Gap 2 phase). The chromosomes are tetraploid in this phase.
S Phase definition: Phase of the CELL CYCLE following G1 and preceding G2 when the entire DNA content of the nucleus is replicated. It is achieved by bidirectional replication at multiple sites along each chromosome.
S phase definition: A cell cycle process comprising the steps by which a cell progresses through S phase, the part of the cell cycle during which DNA synthesis takes place. [GOC:ai, GOC:dph, GOC:mah]
S Phase definition: Phase of the cell cycle following G1 and preceding G2 when the entire DNA content of the nucleus is replicated (Synthesis phase). It is achieved by bidirectional replication at multiple sites along each chromosome.