Order

Order, ORDER or Orders most often refers to:

Order, ORDER or Orders may also refer to:

People

Arts, entertainment, and media

Business

Exclusive organisations

Military

Philosophy

Religion

Science and technology

Biology and healthcare

  • Order (taxonomy), a taxonomic classification of organisms by rank
    • Order, in phytosociology, an ecological grouping of plants, between alliance and class
    • Ordo naturalis (natural order), an outdated rank in biology, equivalent to the modern rank of family
  • Order, in medicine, refers to a formal request made by authorized health practitioners to carry out a specific clinical action concerning diagnosis or treatment

Computing

Mathematics

Physics

Signal processing

  • First-order hold, a mathematical model of the practical reconstruction of sampled signals
  • Polynomial order, of a filter transfer function

Other uses in science and technology

See also