Proteid Pro"te*id, n. [Gr. prw^tos first.] (Physiol. Chem.) an older, imprecise term replaced by {{protein}}.

Note: Defined in the 1913 Webster as ``One of a class of amorphous nitrogenous principles, containing, as a rule, a small amount of sulphur; an albuminoid, as blood fibrin, casein of milk, etc. Proteids are present in nearly all animal fluids and make up the greater part of animal tissues and organs. They are also important constituents of vegetable tissues. See 2d Note under {Food}.'' -- {Pro"te*id}, a. [1913 Webster +PJC]

{Defensive proteid} (Physiol. Chem.), one of a class of proteid substances, present in some animal tissues and fluids, that make the body immune to certain infectious diseases by destroying or rendering inactive the toxic products of bacterial growth; -- this is an older term replaced by more precise modern immunological concepts such as {antibody} and {immunoglobulin}. [archaic] [Webster 1913 Suppl. +PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Protein — Pro te*in, n. [Gr. prw^tos first: cf. prwtei^on the first place.] (Physiol. Chem.) any polymer of an amino acid joined by peptide (amide) bonds. Most natural proteins have alpha amino acids as the monomeric constituents. All classical enzymes are …   The Collaborative International Dictionary of English

  • Protein — Sn Eiweißkörper per. Wortschatz fach. (19. Jh.) Neoklassische Bildung. Der niederländische Chemiker G. J. Mulder glaubte, bei seinen Untersuchungen die Grundsubstanz organischen Lebens entdeckt zu haben, und gab ihr nach Vorschlag von Berzelius… …   Etymologisches Wörterbuch der deutschen sprache

  • Protein — Pro te*in, n. (Physiol. Chem.) In chemical analysis, the total nitrogenous material in vegetable or animal substances, obtained by multiplying the total nitrogen found by a factor, usually 6.25, assuming most proteids to contain approximately 16… …   The Collaborative International Dictionary of English

  • protein — protein. См. белок. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Protein — Protein, s. Kleber …   Meyers Großes Konversations-Lexikon

  • Proteïn — Proteïn, eiweißstoffartiger Körper welcher als Zersetzungsproduct des Pflanzenalbumins, des Pflanzencaseïns und des Pflanzenfibrins gewonnen wird, in den Austern aber frei vorkommt. Obige Pflanzenbestandtheile nennt man auch P. verbindungen; sie… …   Herders Conversations-Lexikon

  • protein — v. proteo . Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • protein — 1844, from Fr. protéine, coined 1838 by Dutch chemist Gerhard Johan Mulder (1802 1880), perhaps on suggestion of Berzelius, from Gk. proteios the first quality, from protos first (see PROTO (Cf. proto )). Originally a theoretical substance… …   Etymology dictionary

  • protein — ► NOUN ▪ any of a class of organic compounds forming structural components of body tissues and constituting an important part of the diet. ORIGIN from Greek pr teios primary …   English terms dictionary

  • protein — [prō′tēn΄, prō′tē in] n. [Ger < Fr protéine < Gr prōteios, prime, chief < prōtos, first (see PROTO ): from being a chief constituent of plant and animal bodies] any of a large class of complex polymers consisting of long chains of… …   English World dictionary

  • protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

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