Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of blast is as below...

Hypoblast :: Hypoblast (n.) The inner or lower layer of the blastoderm; -- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm..

Meroblast :: Meroblast (n.) An ovum, as that of a mammal, only partially composed of germinal matter, that is, consisting of both a germinal portion and an albuminous or nutritive one; -- opposed to holoblast..

Blasted :: Blasted (imp. & p. p.) of Blas.

Bessemer Steel :: Bessemer steel () Steel made directly from cast iron, by burning out a portion of the carbon and other impurities that the latter contains, through the agency of a blast of air which is forced through the molten metal; -- so called from Sir Henry Bessemer, an English engineer, the inventor of the process..

Osteoplast :: Osteoplast (n.) An osteoblast.

Downcome :: Downcome (n.) A pipe for leading combustible gases downward from the top of the blast furnace to the hot-blast stoves, boilers, etc., where they are burned..

Set :: Set (v. i.) To be fixed for growth; to strike root; to begin to germinate or form; as, cuttings set well; the fruit has set well (i. e., not blasted in the blossom)..

Mesoblast :: Mesoblast (n.) The mesoderm.

Delamination :: Delamination (n.) Formation and separation of laminae or layers; one of the methods by which the various blastodermic layers of the ovum are differentiated.

Blastule :: Blastule (n.) Same as Blastula.

Gonoblastidium :: Gonoblastidium (n.) A blastostyle.

Archaeostomatous :: Archaeostomatous (a.) Applied to a gastrula when the blastopore does not entirely close up.

Blastosphere :: Blastosphere (n.) The hollow globe or sphere formed by the arrangement of the blastomeres on the periphery of an impregnated ovum.

Spermosphere :: Spermosphere (n.) A mass or ball of cells formed by the repeated division of a male germinal cell (spermospore), each constituent cell (spermoblast) of which is converted into a spermatozoid; a spermatogemma..

Morula :: Morula (n.) The sphere or globular mass of cells (blastomeres), formed by the clevage of the ovum or egg in the first stages of its development; -- called also mulberry mass, segmentation sphere, and blastosphere. See Segmentation..

Statocracy :: Statoblast (n.) One of a peculiar kind of internal buds, or germs, produced in the interior of certain Bryozoa and sponges, especially in the fresh-water species; -- also called winter buds..

Blast :: Blast (v. t.) To confound by a loud blast or din.

Blastoidea :: Blastoidea (n. pl.) One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.

Reed :: Reed (n.) A tube containing the train of powder for igniting the charge in blasting.

Halones :: Halones (n. pl.) Alternating transparent and opaque white rings which are seen outside the blastoderm, on the surface of the developing egg of the hen and other birds..

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