nodule n. [L. dim. nodus, knob] A swollen knob-like structure.
nodulus n. [L. dim. nodus, knob] (ANN) An enlarged region on a crotchet chaeta at about midlength.
nodus n. [L. nodus, knob] (ARTHRO: Insecta) 1. In Hymenop-tera Ichneumonidae, a dorsal prominence on the tip of the ovipositor, shortly before the apex. 2. In Odonata, a strong cross vein near the middle of the costal border of the wing.
nomadism n. [Gr. nomas, roaming] (ARTHRO: Insecta) Frequent movement by a colony from one site to another.
nomenclator n. [L. nomen, name; calare, to call] A nomen-clatural book containing a list of scientific names, not for taxonomic purposes.
nomenclature n. [L. nomen, name; calare, to call] In biology, a system of names for biological units.
nomen conservandum A name preserved by action of the International Commission on Zoological Nomenclature and placed on the appropriate official list.
nomen dubium The name of a nominal species that lacks available evidence so as to permit recognition of the zoological species to which it was applied.
nomen inquirendum The scientific name is subject to investigation.
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