placode
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placode — [plakɔd] n. f. ÉTYM. XXe; de placo , et du grec eidos « forme ». ❖ ♦ Embryol. Chacun des épaississements de l ectoderme dont dériveront les organes des sens et les ganglions nerveux. || Placode auditive, olfactive, optique … Encyclopédie Universelle
Placode — A placode is an area of thickening in the embryonic epithelial layer where some organ or structure later develops. The term usually refers to cranial placodes, peripheral nervous system structures associated with the special senses and cranial… … Wikipedia
placode — Local thickening in the embryonic ectoderm layer; the cells of the p. ordinarily constitute a primordial group from which a sense organ or ganglion develops. [G. plakodes, fr. plax, anything flat or broad, + eidos, like] auditory placodes SYN:… … Medical dictionary
placode — ˈplaˌkōd noun ( s) Etymology: International Scientific Vocabulary plac + ode : a platelike thickening of embryonic ectoderm from which a definitive structure develops ear placode olfactory placode see lens placode … Useful english dictionary
placode — a thickened or plate like region within an epithelium … Dictionary of ichthyology
placode — Area of thickened ectoderm in the embryo from which a nerve ganglion, or a sense organ will develop … Dictionary of molecular biology
placode — /plak ohd/, n. Embryol. a local thickening of the endoderm in the embryo, that usually constitutes the primordium of a specific structure or organ. [1905 10; < Gk plak (s. of pláx) something flat, tablet + ODE1] * * * … Universalium
placode — noun A platelike thickening of the epithelial layer of an embryo from which an organ, especially a sense organ, develops … Wiktionary
placode — pla·cò·de s.m. TS embriol. nei Vertebrati, ispessimento discoidale dell ectoderma, nella zona cefalica dell embrione, da cui derivano gli organi sensoriali {{line}} {{/line}} DATA: 1958. ETIMO: dal gr. plakōdēs piatto … Dizionario italiano
placode — pl.m. placodi … Dizionario dei sinonimi e contrari
placode — n. thickening of endodermic tissue, initial stage in organ formation (Embryology) … English contemporary dictionary
