n. [ Pref. meta- + genesis. ] 1. (Biol.) The change of form which one animal species undergoes in a series of successively produced individuals, extending from the one developed from the ovum to the final perfected individual. Hence, metagenesis involves the production of sexual individuals by nonsexual means, either directly or through intervening sexless generations. Opposed to monogenesis. See Alternate generation, under Generation. [ 1913 Webster ]
2. (Biol.) Alternation of sexual and asexual or gemmiparous generations; -- in distinction from heterogamy. [ 1913 Webster ]
n. [ Pref. para- + genesis. ] 1. (Min.) The science which treats of minerals with special reference to their origin. [ 1913 Webster ]
2. (Geol.) (a) The formation of minerals in contact, so as to affect one another's development. (b) The order in which minerals occurring together in rocks and veins have developed. [ Webster 1913 Suppl. ]
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เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
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