abscissa

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English[edit]

A point in the Cartesian plane; x is the abscissa.

Etymology[edit]

By ellipsis from Latin [linea] abscissa, feminine of abscissus, perfect passive participle of abscindō (cut off). See abscind.

Pronunciation[edit]

  • (US) IPA(key): /æbˈsɪs.ə/
  • (file)
  • Hyphenation: ab‧scis‧sa

Noun[edit]

abscissa (plural abscissas or abscissae or abscissæ)

  1. (geometry) The first of the two terms by which a point is referred to, in a system of fixed rectilinear coordinate (Cartesian coordinate) axes.[First attested in the late 17th century.][1]
    The point has 3 as its abscissa and 2 as its ordinate.
  2. (geometry) The horizontal line representing an axis of a Cartesian coordinate system, on which the abscissa (sense above) is shown.

Usage notes[edit]

Originally, it referred to the portion of a line between a fixed point on that line and the intersection of that line with an ordinate.[1]

Synonyms[edit]

Hypernyms[edit]

Coordinate terms[edit]

Translations[edit]

See also[edit]

References[edit]

  1. 1.0 1.1 Lesley Brown, editor-in-chief; William R. Trumble and Angus Stevenson, editors (2002), “abscissa”, in The Shorter Oxford English Dictionary on Historical Principles, 5th edition, Oxford; New York, N.Y.: Oxford University Press, →ISBN, page 8.

Latin[edit]

Etymology 1[edit]

From abscissus, perfect passive participle of abscindō (tear away).

Pronunciation 1[edit]

Noun[edit]

abscissa f (genitive abscissae); first declension

  1. (New Latin, mathematics) abscissa
Declension[edit]

First-declension noun.

Case Singular Plural
Nominative abscissa abscissae
Genitive abscissae abscissārum
Dative abscissae abscissīs
Accusative abscissam abscissās
Ablative abscissā abscissīs
Vocative abscissa abscissae
Descendants[edit]
  • English: abscissa
  • Irish: aibsíse
  • Norwegian Bokmål: abscisse
  • Portuguese: abscissa
  • Italian: ascissa

Pronunciation 2[edit]

Noun[edit]

abscissā f

  1. ablative singular of abscissa

Etymology 2[edit]

See the etymology of the corresponding lemma form.

Participle[edit]

abscissa

  1. inflection of abscissus:
    1. nominative/vocative feminine singular
    2. nominative/accusative/vocative neuter plural

Participle[edit]

abscissā

  1. ablative feminine singular of abscissus

Portuguese[edit]

Pronunciation[edit]

 
  • (Brazil) IPA(key): /a.biˈsi.sɐ/, /abˈsi.sɐ/
    • (Southern Brazil) IPA(key): /abˈsi.sa/, /a.biˈsi.sa/
  • (Portugal) IPA(key): (careful pronunciation) /ɐbʃˈsi.sɐ/ [ɐβʃˈsi.sɐ], (natural pronunciation) /ɐbˈʃi.sɐ/ [ɐβˈʃi.sɐ]

  • Hyphenation: abs‧cis‧sa

Noun[edit]

abscissa f (plural abscissas)

  1. (geometry) abscissa (first of two coordinates)

Coordinate terms[edit]


Swedish[edit]

Noun[edit]

abscissa c

  1. Alternative spelling of abskissa; abscissa

Declension[edit]

Declension of abscissa 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative abscissa abscissan abscissor abscissorna
Genitive abscissas abscissans abscissors abscissornas