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''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. ==Common qualifiers== ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: *''sensu stricto'' – "in the strict sense", abbreviation ''s.s.'';〔(【引用サイトリンク】publisher=FishBase )〕 *''sensu lato'' – "in the wide or broad sense", abbreviation ''s.l.''; *''sensu amplo'' – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent (most important or significant ) sense".〔''The Journals of Søreen Kierkegaard'', edited by Alexander Dru, Harper Torchbooks, New York, 1959, page 22〕 When appropriate, comparative and superlative adjectives may also be used to convey the meaning of "more" or "most". Thus ''sensu stricto'' becomes ''sensu strictiore'' ("in the stricter sense" or "more strictly speaking") and ''sensu strictissimo'' ("in the strictest sense" or "most strictly speaking"). Current definitions of the plant kingdom (Plantae) offer a biological example of when such phrases might be used. One definition of Plantae is that it consists of all green plants, all red algae and all glaucophyte algae. A stricter definition excludes the red and glaucophyte algae; the group defined in this way could be called Plantae ''sensu stricto''. An even stricter definition excludes green algae, leaving only land plants; the group defined in this way could be called Plantae ''sensu strictissimo''.〔Spichiger, R-E; Savolainen, Vincent V.; Figeat, Murielle: Systematic Botany of Flowering Plants. Publisher: Science Publishers 2004 ISBN 978-1-57808-373-2〕 Conversely, where convenient, some authors derive expressions such as "''sensu non strictissimo''", meaning "not in the narrowest possible sense".〔Villiger, Mark E. "Customary International Law and Treaties (Developments in International Law, 7)" Publisher: Springer 1985 ISBN 978-90-247-2980-7〕 A similar form is in use to indicate the sense of a particular context, such as "Nonmonophyletic groups are ... nonnatural (sensu cladistics) in that..."〔Wheeler, Quentin & Blackwell, Meredith. Fungus-Insect Relationships: Perspectives in Ecology and Evolution. Publisher: Columbia Univ 1984 ISBN 978-0-231-05695-3〕 or "...computation of a cladogram (sensu phenetics)..."〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sensu」の詳細全文を読む スポンサード リンク
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