PARABLAST Meaning and
Definition
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Parablast is a term with multiple interpretations depending on the context in which it is used. In scientific and medical contexts, parablast refers to a blastocyst stage of an embryo, which is considered to be a precursor to implantation. At this stage, the fertilized egg has developed into a hollow ball of cells, with an inner cell mass that will eventually give rise to the fetus. The term parablast is commonly used in reproductive biology and embryology to describe this specific developmental stage.
In a different context, particularly in the field of geology, parablast refers to a specific type of metamorphic texture. Metamorphism is the process through which rocks undergo changes due to heat and pressure, and parablast texture is characterized by the presence of platy or elongated minerals aligned in a parallel or sub-parallel fashion. This texture is usually observed in rocks that have undergone regional metamorphism, resulting from tectonic pressures or the heating of large areas of rock.
Furthermore, parablast can also be used in the context of explosion dynamics. In this sense, it refers to the outward explosion of material in a parabolic shape. This term is often employed in the study of blast waves and explosive events, particularly when these exhibit a characteristic parabolic pattern of debris scattering.
Overall, the meaning of parablast varies depending on the field of study, ranging from reproductive biology to geology and explosion dynamics.
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1. The nutritive or lecithal yolk of a meroblastic ovum. 2. Mesoblast, or that part of it from which the vascular structures are developed.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PARABLAST
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