| 单词 | cyclical | 
| 释义 | cyclicaladj. 1.   a.  Of a line: Returning into itself so as to form a closed curve. rare. ΚΠ 1817    S. T. Coleridge Biogr. Lit. 122  				[The point] must flow back again on itself; that is, there arises a cyclical line which does inclose a space.  b.  Of a letter: Circular, encyclical. rare. ΚΠ 1879    F. W. Farrar Life & Work St. Paul I.  vi. xxii. 434  				The genuineness of this cyclical letter is evinced by its extreme naturalness.  2.   a.  = cyclic adj. 1. ΘΚΠ the world > time > period > cycle of time > 			[adjective]		 cyclar1769 cyclic1794 cyclicala1834 a1834    S. T. Coleridge in  Webster's Internat. Dict. Eng. Lang. 		(1890)	  				Time, cyclical time, was their abstraction of the Deity. 1837    F. Palgrave Merchant & Friar 		(1844)	 iii. 78  				Modes of thought, not cyclical, but successive. 1854    H. Moseley Lect. Astron. 		(ed. 4)	 lxxix. 219  				The changes of the planetary orbits must return in certain cyclical periods. 1861    E. Smith 		(title)	  				Health and Disease, as influenced by the Daily, Seasonal, and other Cyclical Changes in the Human System.  b.  Belonging to a definite chronological cycle. ΘΚΠ the world > time > period > cycle of time > 			[adjective]		 > belonging to a definite cycle cyclic1838 cyclical1838 1838    T. Arnold Hist. Rome I. xviii. 382  				The truce..was to last only for forty cyclical years of ten months each. 1875    B. Jowett in  tr.  Plato Dialogues 		(ed. 2)	 III. 579  				Plato also speaks of an ‘annus magnus’ or cyclical year.  3.  = cyclic adj. 2. ΘΚΠ society > leisure > the arts > literature > prose > narrative or story > legend or folk tale > 			[adjective]		 > cycle cyclica1822 cyclical1841 cyclian1847 1841    T. De Quincey Homer & Homeridae in  Blackwood's Edinb. Mag. Oct. 413/1  				The many epic and cyclical poems which arose during Post-Homeric ages. 1873    J. A. Symonds Stud. Greek Poets vii. 191  				The Cyclical poets.  4.  Botany.  a.  Rolled up circularly, as the embryos of many seeds. ΚΠ 1866    in  J. Lindley  & T. Moore Treasury Bot.  				 1870    J. D. Hooker Student's Flora Brit. Islands 36  				Wartcress..embryo in some species cyclical.  b.  Arranged in whorls, verticillate; hence transferred in Zoology. ΚΠ 1881    W. B. Carpenter Microscope 546  				We find in the nautiloid spire a tendency to pass..into the cyclical mode of growth.  5.   cyclical number  n. (see quot. 1875). ΘΚΠ the world > relative properties > number > mathematical number or quantity > 			[noun]		 > particular qualities > perfect cyclical number1875 1875    B. Jowett in  tr.  Plato Dialogues 		(ed. 2)	 III. 113  				A perfect or cyclical number, i.e. a number in which the sum of the divisors equals the whole. This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2021). <  | 
	
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