proteidn.1
/ˈprəʊtɪɪd/, U.S. /ˈproʊdiəd/ Biochemistry. Now rare or disused.
A proteinaceous substance, a protein. Also: a protein combined with a sugar, phosphate, metal, or other atom or group. Frequently attributive (cf. protein n. Compounds 1a).Used influentially by Henry Watts to avoid what at the time was an ambiguity in English of the term protein: see the note at protein n.
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1870 Nature 17 Mar. 513/1 Are fats formed in the body out of proteids?
1871 H. Watts tr. L. Gmelin Hand-bk. Chem. XVIII. 252 The term proteides is here used in the comprehensive sense, which permits the grouping together of the non-crystallisable nitrogenous animal and vegetable substances possessing reactions in common.
1872 T. H. Huxley Lessons Elem. Physiol. (ed. 6) i. 3 That compound known to chemists as proteid matter.
1873 H. Watts Fownes's Man. Elem. Chem. (ed. 11) 955 Albuminous Principles—Albuminoids or Proteids.
1878 C. T. Kingzett Animal Chem. 159 A man confined to a purely proteid diet must eat a prodigious quantity of it.
1891 Pall Mall Gaz. 5 Feb. 6/3 Some months ago Mr. Hankin discovered a class of organisms to which he gave the name of ‘Protective Proteids’. These substances..appear to be a sort of natural antiseptic.
1906 G. Mann Chem. Proteids 4 For the purposes of classification, ‘proteids’ may be divided into three groups: 1. Albumins... 2. Proteids proper, which are combinations of the native albumins with such other organic compounds... 3. Derivatives of the natural albumins and proteids.
1907 Recommendations of Committee in Proc. Physiol. Soc. 26 Jan. p. xviii The word Proteid—which is used in different senses in this country and in Germany—should be abolished.
1922 E. W. Swanton Fungi & how to know Them (ed. 2) i. v. 35 He has shown that the proportion of proteid matter (the material supplied by meat) is smaller [in fungi] than is usually supposed.
1944 Amer. Jrnl. Bot. 31 268/1 The brown color is due to the oxidation of polyphenols by polyphenol oxidases, which are considered to be copper proteids.
1973 Proc. National Acad. Sci. U.S.A. 71 1052/2 It seems that the active proteide is in concentration-dependent, reversible equilibrium with multiple aggregates.
Derivatives
proteiˈdogenous adj. rare producing protein.
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1918 Times Lit. Suppl. 2 May 205/2 The proteidogenous molecules whose by-play is supposed to be life.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
proteidn.2adj.
/ˈprəʊtɪɪd/, U.S. /ˈproʊdiəd/ Zoology.
A. n.2
A salamander of the family Proteidae, which comprises the olm of Europe ( Proteus anguinus) and the mud puppy and waterdogs of North America (genus Necturus).
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1885 Amer. Naturalist 19 245 In the brain of the Proteïd Necturus the hemispheres are relatively larger than in the Anura.
1974 Copeia iii. 637/2 In other respects the proteids are remarkably similar in their visceral skeletons.
1997 Jrnl. Biogeogr. 24 270/2 An ancient, epigean proteid may have invaded this comparatively isolated area in the late Oligocene.
B. adj.
Belonging to or characteristic of the family Proteidae.
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1974 Copeia iii. 638/2 The phylogenetic significance of this uniquely proteid feature should not be overlooked.
2000 Philos. Trans. (Royal Soc.) B. 355 1209 Previous reports have indicated that members of the proteid family of salamanders lack a vomeronasal system.
Derivatives
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1890 Cent. Dict. Proteidean, of or pertaining to the Proteidea.
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.11870
n.2adj.1885