Irregular-galaxy
noun, Astronomy.
1.
a galaxy with no specific form and a relatively low mass.
irregular galaxy
A galaxy that does not have the clearly defined shape and structure of typical elliptical, lenticular, or spiral galaxies. Irregular galaxies typically contain large amounts of gas and dust, and their stars are often young. They account for only a small percentage of known galaxies. Some irregular galaxies are the result of gravitational interactions or collisions between formerly regular galaxies. Many irregular galaxies orbit larger regular ones; the Magellanic Cloud galaxies orbiting the Milky Way are examples. Compare elliptical galaxy, lenticular galaxy, spiral galaxy. See more at Hubble classification system.
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[ih-reg-yuh-lar-i-tee] /ɪˌrɛg yəˈlær ɪ ti/ noun, plural irregularities for 2, 3. 1. the quality or state of being . 2. something . 3. a breach of rules, customs, etiquette, morality, etc. 4. occasional mild constipation. /ɪˌrɛɡjʊˈlærɪtɪ/ noun (pl) -ties 1. the state or quality of being irregular 2. something irregular, such as a bump in […]
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[ih-reg-yuh-lar-i-tee] /ɪˌrɛg yəˈlær ɪ ti/ noun, plural irregularities for 2, 3. 1. the quality or state of being . 2. something . 3. a breach of rules, customs, etiquette, morality, etc. 4. occasional mild constipation. /ɪˌrɛɡjʊˈlærɪtɪ/ noun (pl) -ties 1. the state or quality of being irregular 2. something irregular, such as a bump in […]
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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 […]