- irregular variable
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a variable star whose brightness variation is irregular. Also called irregular variable star.[1900-05]
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Universalium. 2010.
irregular variable
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Irregular variable — An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three… … Wikipedia
irregular variable — noun : a variable star whose light fluctuations are nonperiodic * * * Astron. a variable star whose brightness variation is irregular. Also called irregular variable star. [1900 05] * * * irregular variable, a star that varies in brightness or… … Useful english dictionary
irregular variable star — noun a variable star that changes intensity in a random fashion, as from a flare on the star s surface. Also, non periodic variable star …
Irregular — Something that is irregular does not follow the expected pattern. The term is used in many different fields, with quite different meanings.* In astronomy, an astronomical object whose shape or behavior varies considerably from the archetype is… … Wikipedia
variable star — /ˈvɛəriəbəl sta/ (say vairreeuhbuhl stah) noun a star the brightness of which changes. See Cepheid variable star, extrinsic variable star, intrinsic variable star, irregular variable star, periodic variable star …
Irregular — Ir*reg u*lar, a. [Pref. ir not + regular: cf. F. irr[ e]gulier.] Not regular; not conforming to a law, method, or usage recognized as the general rule; not according to common form; not conformable to nature, to the rules of moral rectitude, or… … The Collaborative International Dictionary of English
irregular — [adj1] random, variable aberrant, aimless, capricious, casual, changeable, designless, desultory, disconnected, discontinuous, eccentric, erratic, faltering, fitful, fluctuating, fragmentary, haphazard, hit or miss*, inconstant, indiscriminate,… … New thesaurus
irregular — [i reg′yə lər] adj. [ME < OFr irregulier < ML irregularis: see IN 2 & REGULAR] 1. not conforming to established rule, method, usage, standard, etc.; out of the ordinary; anomalous 2. not conforming to legal or moral requirements; lawless;… … English World dictionary
irregular — ir·reg·u·lar /ir re gyə lər/ adj: not in accord with laws, rules, procedures, or established custom ir·reg·u·lar·ly adv Merriam Webster’s Dictionary of Law. Merriam Webster. 1996. ir … Law dictionary
Variable irreguliere — Variable irrégulière Une variable irrégulière est un type d étoile variable dont les variations de luminosité ne présentent pas de périodicité définie. Il y a deux sous types principaux de variables irrégulières : les variables irrégulières… … Wikipédia en Français
