monad

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monad

 [mo´nad]
1. a single-celled protozoon or coccus.
2. a univalent radical or element.
3. in meiosis, one member of a tetrad.

mon·ad

(mon-'ad),
1. A univalent element or radical.
2. A unicellular organism.
3. In meiosis, the single chromosome derived from a tetrad after the first and second maturation divisions.
[G. monas, the number one, unity]

monad

/mon·ad/ (mon´ad)
1. a single-celled protozoan or coccus.
2. a univalent radical or element.
3. in meiosis, one member of a tetrad.

monad

(mō′năd′)
n.
1. Philosophy An indivisible, impenetrable unit of substance viewed as the basic constituent element of physical reality in the metaphysics of Leibniz.
2. Biology A single-celled microorganism, especially a flagellate protozoan formerly classified in the taxonomic group Monadina.

mo·nad′ic (mə-năd′ĭk), mo·nad′i·cal adj.
mo·nad′i·cal·ly adv.
mo′nad·ism n.

monad

[mon′ad, mō′nəd]
1 a unicellular, free-living organism.
2 a monovalent element or ion.
3 a haploid set of chromosomes in a spermatid or ootid.

mon·ad

(mō'nad)
1. A univalent element or radical.
2. A unicellular organism.
3. In meiosis, the single chromosome derived from a tetrad after the first and second maturation divisions.
[G. monas, the number one, unity]

monad

  1. any single-celled organism.
  2. a single cell resulting from meiosis (instead of a tetrad).

monad

1. a protozoon or coccus.
2. a univalent radical or element.
3. in meiosis, one member of a tetrad.