classification

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌklæsəfɪˈkeɪʃ^ən/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌklæsəfɪˈkeɪʃən/

US:USA pronunciation: respellingUSA pronunciation: respelling(klas′ə fi kā′shən)

clas•si•fi•ca•tion /ˌklæsəfɪˈkeɪʃən/USA pronunciation n.

[uncountable] the act or state of classifying.
a group or class into which something is classified:[countable]Your classifications don't take into account some important differences.

clas•si•fi•ca•tion (klas′ə fi kā′shən),USA pronunciation n.

the act of classifying.
the result of classifying or being classified.
one of the groups or classes into which things may be or have been classified.
Biologythe assignment of organisms to groups within a system of categories distinguished by structure, origin, etc. The usual series of categories is phylum (or, esp. in botany, division), class, order, family, genus, species, and variety. See table under taxonomy.
Governmentthe category, as restricted, confidential, secret, or top secret, to which information, a document, etc., is assigned, as by a government or military agency, based on the degree of protection considered necessary to safeguard it from unauthorized use.
Library Scienceany of various systems for arranging books and other materials, esp. according to subject or format.

cla•si′fi•ca•to′ri•ly, adv.
clas′si•fi•ca′tion•al, adj.

Collins Concise English Dictionary © HarperCollins Publishers::

classification /ˌklæsɪfɪˈkeɪʃən/ n

systematic placement in categories
one of the divisions in a system of classifying
- the placing of animals and plants in a series of increasingly specialized groups because of similarities in structure, origin, molecular composition, etc, that indicate a common relationship. The major groups are domain or superkingdom, kingdom, phylum (in animals) or division (in plants), class, order, family, genus, and species
- the study of the principles and practice of this process; taxonomy

Etymology: 18th Century: from French; see class, -ify, -ationˌclassifiˈcatory adj

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