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noun, Astronomy.
a variable star whose brightness variation is irregular.


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  • Irregular verb

    noun any verb whose past tense and past participle are not formed by adding -ed, -d, or -t to the present tense, a verb that does not follow the general rules of inflection A verb in which the past tense is not formed by adding the usual -ed ending. Examples of irregular verbs are sing […]

  • Irrelative

    [ih-rel-uh-tiv] /ɪˈrɛl ə tɪv/ adjective 1. not ; without relation (usually followed by to). 2. not pertinent; irrelevant. /ɪˈrɛlətɪv/ adjective 1. unrelated 2. a rare word for irrelevant

  • Irrelevance

    [ih-rel-uh-vuh ns] /ɪˈrɛl ə vəns/ noun 1. the quality or condition of being . 2. an thing, act, etc. n. 1735, from irrelevant + -ance. Earlier in the same sense was irrelevancy (1590s).

  • Irrelevancies

    [ih-rel-uh-vuh n-see] /ɪˈrɛl ə vən si/ noun, plural irrelevancies. 1. .

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