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Encyclopedia > Orders

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Order - Wikipedia, the free encyclopedia (317 words)
Order (biology), a rank between class and family, or a taxon at that rank
Order theory, a branch of mathematics that studies various kinds of binary relations known as orders
Order (organization), an organization of people united by a common fraternal bond or social aim.
Order (biology) - Wikipedia, the free encyclopedia (428 words)
In scientific classification used in biology, the order (Latin: ordo, plural ordines) is a rank between class and family, or a taxon at that rank.
The order as a distinct rank of biological classification having its own distinctive name (and not just called a higher genus (genus summum)) was first introduced by a German botanist Augustus Quirinus Rivinus in his classification of plants (appeared in a series of treatises in the 1690s).
Lepidoptera for the order of moths and butterflies, or Diptera for the order of flies, mosquitoes, midges, and gnats).
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