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Entoderm :: Entoderm (n.) See Endoderm, and Illust. of Blastoderm..

Epiblastic :: Epiblastic (a.) Of or relating to, or consisting of, the epiblast..

Refinery :: Refinery (n.) A furnace in which cast iron is refined by the action of a blast on the molten metal.

Blow-out :: Blow-out (n.) The cleaning of the flues of a boiler from scale, etc., by a blast of steam..

Spermo- :: Spermo- () Combining forms from Gr. spe`rma, -atos, seed, sperm, semen (of plants or animals); as, spermatoblast, spermoblast..

Blasting :: Blasting (n.) A blast; destruction by a blast, or by some pernicious cause..

Periplast :: Periplast (n.) Same as Periblast.

Diploblastic :: Diploblastic (a.) Characterizing the ovum when it has two primary germinal layers.

Gonotheca :: Gonotheca (n.) A capsule developed on certain hydroids (Thecaphora), inclosing the blastostyle upon which the medusoid buds or gonophores are developed; -- called also gonangium, and teleophore. See Hydroidea, and Illust. of Campanularian..

Proliferous :: Proliferous (a.) Producing sexual zooids by budding; -- said of the blastostyle of a hydroid.

Osteoblast :: Osteoblast (n.) One of the protoplasmic cells which occur in the osteogenetic layer of the periosteum, and from or around which the matrix of the bone is developed; an osteoplast..

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)..

Blastemata :: Blastemata (pl. ) of Blastem.

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..

Mesoblastic :: Mesoblastic (a.) Relating to the mesoblast; as, the mesoblastic layer..

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

Endoderm :: Endoderm (n.) The innermost layer of the blastoderm and the structures derived from it; the hypoblast; the entoblast. See Illust. of Ectoderm.

Planoblast :: Planoblast (n.) Any free-swimming gonophore of a hydroid; a hydroid medusa.

Amphiblastic :: Amphiblastic (a.) Segmenting unequally; -- said of telolecithal ova with complete segmentation.

Odontoblast :: Odontoblast (n.) One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine.

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