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单词 atactic
释义

atacticadj.

/əˈtaktɪk/
Etymology: < Greek ἄτακτος not arranged ( < privative + τακτός, verbal adjective < τάσσειν to arrange) + -ic suffix.
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).
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adj.1842
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