noun Etymology: New Latin Placodermi, ultimately from Greek plak-, plax + derma skin — more at derm- Date: circa 1865 any of a class (Placodermi) of extinct chiefly Devonian fishes with an armor of bony plates and primitive jaw structures

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • placoderm — PLACODÉRM, placodermi, s.m. (La pl.) Subclasă de peşti fosili, paleozoici, cu scheletul cartilaginos şi cu corpul acoperit de plăci osoase; (şi la sg.) peşte din această subclasă. – Din fr. placodermes, germ. Plakoderm. Trimis de oprocopiuc,… …   Dicționar Român

  • Placoderm — Plac o*derm, n. [Gr. pla x, plako s, tablet + de rma skin.] (Paleon.) One of the Placodermi. [1913 Webster] …   The Collaborative International Dictionary of English

  • placoderm — /plak euh derrm /, n. any of various extinct jawed fishes of the class Placodermi, dominant in seas and rivers during the Devonian Period and characterized by bony armored plates on the head and upper trunk. [1855 60; < NL Placodermi name of the… …   Universalium

  • placoderm — noun A member of an extinct group of fish with armored heads; the group lived during the Silurian and Devonian periods …   Wiktionary

  • placoderm — pla|co|derm Mot Agut Nom masculí …   Diccionari Català-Català

  • placodérm — s. m., pl. placodérmi …   Romanian orthography

  • placoderm — [ plakə(ʊ)də:m] noun a fossil fish of the Devonian period, having the front part of the body encased in broad flat bony plates. Origin C19: from Gk plax, plak flat plate + derma skin …   English new terms dictionary

  • placoderm — plac·o·derm …   English syllables

  • placoderm — plac•o•derm [[t]ˈplæk əˌdɜrm[/t]] n. pal any of various extinct jawed fishes of the class Placodermi, chiefly of the Devonian Period: many were armored in bony plates • Etymology: 1855–60; < NL Placodermi name of the class, pl. of… …   From formal English to slang

  • placoderm — /ˈplækoʊdɜm/ (say plakohderm) noun a member of an extinct group of fish, thought to be ganoids, existing in the late Devonian period. {New Latin, from Greek plakos tablet + derma skin} …   Australian English dictionary

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