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Mantle :: Mantle (n.) The outer wall and casing of a blast furnace, above the hearth..

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..

Protovertebra :: Protovertebra (n.) One of the primitive masses, or segments, into which the mesoblast of the vertebrate embryo breaks up on either side of the anterior part of the notochord; a mesoblastic, or protovertebral, somite. See Illust. of Ectoderm..

Blore :: Blore (n.) The act of blowing; a roaring wind; a blast.

Ectoderm :: Ectoderm (n.) The outer layer of the blastoderm; epiblast.

Blast :: Blast (v. i.) To be blighted or withered; as, the bud blasted in the blossom..

Disaster :: Disaster (v. t.) To blast by the influence of a baleful star.

Blower :: Blower (n.) A device for producing a current of air; as: (a) A metal plate temporarily placed before the upper part of a grate or open fire. (b) A machine for producing an artificial blast or current of air by pressure, as for increasing the draft of a furnace, ventilating a building or shaft, cleansing gram, etc..

Gunpowder :: Gunpowder (n.) A black, granular, explosive substance, consisting of an intimate mechanical mixture of niter, charcoal, and sulphur. It is used in gunnery and blasting..

Spermospore :: Spermospore (n.) The male germinal or seminal cell, from the breaking up of which the spermoblasts are formed and ultimately the spermatozoids; a spermatospore..

Blastocoele :: Blastocoele (n.) The cavity of the blastosphere, or segmentation cavity..

Mesenteron :: Mesenteron (n.) All that part of the alimentary canal which is developed from the primitive enteron and is lined with hypoblast. It is distinguished from the stomod/um, a part at the anterior end of the canal, including the cavity of the mouth, and the proctod/um, a part at the posterior end, which are formed by invagination and are lined with epiblast..

Pentremites :: Pentremites (n.) A genus of crinoids belonging to the Blastoidea. They have five petal-like ambulacra.

Tamp :: Tamp (v. t.) In blasting, to plug up with clay, earth, dry sand, sod, or other material, as a hole bored in a rock, in order to prevent the force of the explosion from being misdirected..

Blast Pipe :: Blast pipe () The exhaust pipe of a steam engine, or any pipe delivering steam or air, when so constructed as to cause a blast..

Blastema :: Blastema (n.) The structureless, protoplasmic tissue of the embryo; the primitive basis of an organ yet unformed, from which it grows..

Mesoplast :: Mesoplast (n.) The nucleus of a cell; mesoblast.

Hypoderm :: Hypoderm (n.) Same as Hypoblast.

Bioblast :: Bioblast (n.) Same as Bioplast.

Scaffold :: Scaffold (n.) An accumulation of adherent, partly fused material forming a shelf, or dome-shaped obstruction, above the tuyeres in a blast furnace..

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