单词	aperiodic
释义	aperiodic adjective ape·​ri·​od·​ic ˌā-ˌpir-ē-ˈä-dik  1 : of irregular occurrence : not periodic aperiodic floods 2 : not having periodic vibrations : not oscillatory aperiodically ˌā-ˌpir-ē-ˈä-di-k(ə-)lē  adverb aperiodicity ˌā-ˌpir-ē-ə-ˈdi-sə-tē  noun Synonyms casual catchy choppy discontinuous episodic episodical erratic fitful intermittent irregular occasional spasmodic spastic sporadic spotty unsteady See all Synonyms & Antonyms Example Sentences released aperiodic reports on the results of their cancer research Recent Examples on the Web Penrose showed that a class of polygons now called Penrose tiles can combine to form aperiodic patterns, which never repeat themselves. John Horgan, Scientific American, 16 June 2021 The most famous aperiodic tiling pattern uses two different shapes. Greta Lorge, WIRED, 22 Feb. 2007 Word History First Known Use 1870, in the meaning defined at sense 1 Medical Definition aperiodic adjective ape·​ri·​od·​ic ˌā-ˌpir-ē-ˈäd-ik  1 : of irregular occurrence 2 : not having periodic vibrations : not oscillatory aperiodic adjective as in sporadic lacking in steadiness or regularity of occurrence released aperiodic reports on the results of their cancer research Synonyms & Similar Words Relevance sporadic intermittent occasional irregular discontinuous erratic unpredictable episodic sudden spasmodic spastic violent episodical unsteady casual fitful random volatile choppy spotty fragmentary catchy haphazard arbitrary varying interrupted scattered variable convulsive changing mutable changeful unstable fluctuating capricious desultory broken disconnected aimless odd uncertain slapdash mercurial stray fluid inconstant changeable wavering temperamental unsettled flickery hit-and-miss hit-or-miss fickle Antonyms & Near Antonyms periodic continuous constant regular habitual steady uniform stationary stable repeated systematic even unchanging orderly equable methodical changeless unvarying unremitting unrelenting methodic unwavering See More
随便看	dustband dustbin dustbins dustblu dustbox dustcarts dustcloth dustcloths dustcoat dustcover dustcovers dusted dusted off dusted target duster dusters dustheap dustheaps dustier dustiest dustily dustiness dustinesses dusting dusting brush

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