单词 | atactic |
释义 | atacticadj. 1. Of language: not syntactic. ΘΚΠ the mind > language > [adjective] > characterized by grammar unaccidentedc1740 resupinate1836 atactic1842 amalgamate1849 anaptotic1850 isolating1860 encapsulating1868 grammarless1868 uninflected1875 amalgamating1877 intercalative1882 postmutative1899 positional1908 1842 Chambers's Jrnl. 30 July 218 In this manner syntactic and atactic forms have been respectively formed. 2. Pathology. Of or pertaining to or afflicted with ataxia. ΘΚΠ the world > health and disease > ill health > a disease > disorders of internal organs > [adjective] > disordered functioning ataxic1853 incompetent1863 stammering1868 atactic1880 hyperfunctioning1918 hypofunctional1933 hyperfunctional1934 1880 W. James Feeling of Effort in Anniv. Mem. Boston Soc. Nat. Hist. The special case of the limb being completely anæsthetic, as well as atactic. 1956 R. Jakobson & M. Halle Fund. of Lang. ii. iv. 74 In one variety of aphasia..sometimes..labeled ‘atactic’, the word is the sole linguistic unity preserved... All other sound-sequences are either alien and inscrutable to him or he merges them into familiar words by disregarding their phonetic aberrations. 3. Characterized by or exhibiting irregularity in the spatial arrangement of parts in a molecule. Cf. isotactic adj., syndiotactic adj. ΘΚΠ the world > matter > chemistry > chemical structure or stereochemistry > [adjective] > of or relating to atomic framework or arrangement > exhibiting irregularity atactic1957 1957 Chem. Abstr. 51 15993 [Abstract of art. by G. Natta et al. in 1957 Gazz. Chim. Ital. LXXXVII] Stereospecific polymerization... First syntheses of isotactic and atactic polypropene. 1957 Technology July 176/2 The side groups are situated quite at random along the chain; this type of combination is termed ‘atactic’..atactic polypropylene is a rubbery material freezing below −30 deg. C. This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2021). < adj.1842 |
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