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单词 dichronous
释义

dichronousadj.

Brit. /ˈdʌɪkrənəs/, U.S. /ˈdaɪkrənəs/
Origin: A borrowing from Latin, combined with an English element. Etymons: Latin dichronus , -ous suffix.
Etymology: < classical Latin dichronus, dichronos ( < Hellenistic Greek δίχρονος of two prosodic quantities, either long or short < ancient Greek δι- di- comb. form + χρόνος time: see chronic adj.) + -ous suffix. Compare monochronous adj. and trichronous adj.
1. Botany. Having two periods of growth in the year. Obsolete. rare.Apparently only attested in dictionaries or glossaries.
ΚΠ
1882 New Sydenham Soc. Lexicon Dichronous, in Botany, having two periods of growth in the year.
2. Of a syllable or vowel in Ancient Greek or Latin: having two possible quantities; sometimes short and sometimes long.
ΚΠ
1889 Cent. Dict. at Dichronous In Greek grammar the three vowel-letters α, ι, υ, which may be either long or short in sound, are called dichronous, in contrast to the four remaining vowel-letters, which are fixed in quantity.
1943 J. T. Shipley Dict. World Lit. 162 Dichronous, of a syllable that may be read as either long or short.
1977 G. F. Bonner Educ. in Anc. Rome (2012) xiv. 189 In Greek, it was shown that two of the seven vowels were naturally long, two naturally short, and three could be either long or short; these..were termed ‘dichronous’, or ‘double-timed’.
2011 I. Johnston & G. H. R. Horsley tr. Galen Method of Med. i. 41 Divide vowels further into long, short, and dichronous, and..divide consonants into semivowels and mutes.
This entry has been updated (OED Third Edition, March 2014; most recently modified version published online March 2022).
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adj.1882
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