Monometrosis see haplometrosis

monomial a. [Gr. monos, one; L. nomen, name] Having one name or designation consisting of one term only; unino-mial. see binomial.

monomorphic colony (BRYO) A colony in which only one kind of zooid occurs in the zone of asexual reproduction.

monomorphic polypides (BRYO: Phylactolaemata) One morphologic type of organ system in an asexual budding zone.

monomorphic zooids (BRYO: Gymnolaemata) Zooids of one morphologic type in the zone of astrogenetic repetition.

monomorphism n. [Gr. monos, one; morphe, form] 1. A population that exhibits a single form. see polymorphism. 2. Species that contain only the female sex. see dimorphism. 3. (ARTHRO: Insecta) In social insects, having within a species or colony only a single worker subcaste. monomorphic a.

monomyarian a. [Gr. monos, one; mys, muscle] 1. Having only one muscle. 2. (MOLL: Bivalvia) In oysters and scallops, pertaining to the anterior adductor muscle that has completely disappeared, and the posterior adductor shifted to a more central location between the valves; mon-omyarian condition. see anisomyarian.

mononchoid a. [ Mononchus; Gr. eidos, like] (NEMATA: Adeno-phorea) Having the characteristics of the predacious nematode genus Mononchus.

mononychous a. [Gr. monos, single; onyx, claw] Pertains to organisms having a single or uncleft claw.

monoparental a. [Gr. monos, one; L. parens, progenitor] With females only.

monophagous a. [Gr. monos, one; phagein, to eat] Adapted to subsist on a single kind of food; specialized on a single host species; monotrophic. see polyphagous, oligo-phagous.

monophyletic a. [Gr. monos, single; phyle, tribe] 1. With a single common ancestry. 2. Any group whose most recent common ancestor is cladistically a member of that group. see polyphyletic, oligophyletic.

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