Macroic see meganephridia

macrolecithal a. [Gr. makros, large; lekethos, egg yolk] With a large amount of yolk. see microlecithal.

macromere n. [Gr. makros, large; meros, part] A distinctly large cell resulting from unequal cleavages during early embryology.

macromesentery n. [Gr. makros, large; mesos, middle; enteron, gut] (CNID: Anthozoa) One of the larger complete mesenteries.

macromitosome n. [Gr. makros, large; mitos, thread; soma, body] (ARTHRO: Insecta) The paranucleus as seen in Lepi-doptera.

macromolecule n. [Gr. makros, large; L. moles, mass] Very large molecules such as protein, cellulose, starch, etc.

macromutation n. [Gr. makros, large; mutare, to change] Theory of instantaneous evolution of new taxa by a mutation that establishes reproductive isolation at once.

macronotal a. [Gr. makros, large; notos, back] (ARTHRO: Insecta) Having a large thorax, as a queen ant.

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