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macrocosm
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macrocytic anemia
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macronucleus
mac·ro·nu·cle·us [ màkrō nklee əss ] (plural mac·ro·nu·cle·i [ màkrō nklee  ])


noun 
Definition:
 
protozoan nucleus: the larger of two nuclei in most ciliate protozoans, involved in nonreproductive functions such as feeding and metabolism

mac·ro·nu·cle·ar adjective
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