discoidal area
1. The middle area of an organ.
2. (ARTHROPODA: Insecta)
The middle of a wing; discoidal field.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • discoidal field — see discoidal area …   Dictionary of invertebrate zoology

  • area opaca — area opa·ca ō pā kə n the peripheral opaque area that surrounds the area pellucida of a vertebrate embryo (as of a bird) formed by discoidal cleavage …   Medical dictionary

  • area pellucida — area pel·lu·ci·da pə lü səd ə n the pellucid central area that immediately surrounds a vertebrate embryo (as of a bird) formed by discoidal cleavage * * * the central clear part of the embryonic disc, as seen in the bird egg …   Medical dictionary

  • area opaca — ōˈpākə noun Etymology: New Latin, opaque area : the peripheral opaque area surrounding the area pellucida of vertebrate embryos with discoidal cleavage * * * /oh pay keuh/, Embryol. the opaque area of the blastoderm surrounding the area pellucida …   Useful english dictionary

  • area pellucida — pəˈlüsədə noun Etymology: New Latin, pellucid area : the pellucid central area immediately surrounding the embryo in vertebrates with discoidal cleavage * * * /peuh looh si deuh/, Embryol. the translucent central area of the blastoderm of birds… …   Useful english dictionary

  • Rohana parisatis — Taxobox name = Black Prince image width = 200px regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Lepidoptera familia = Nymphalidae genus = Rohana species = R. parisatis binomial = Rohana parisatis binomial authority = synonyms =… …   Wikipedia

  • middle field — see discoidal area …   Dictionary of invertebrate zoology

  • animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

  • Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …   Universalium

  • Aporia agathon — Taxobox | name = Great Blackvein regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Lepidoptera familia = Pieridae genus = Aporia species = A. agathon binomial = Aporia agathon binomial authority = (Gray, 1832)Great Blackvein , Aporia …   Wikipedia

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