abscissa

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

• (US) IPA^(key): /æbˈsɪs.ə/

• Audio (US):

  (file)

• Hyphenation: ab‧scis‧sa

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 17^th century.]^[1]

   Coordinate term: ordinate

   The point ${\displaystyle (3,2)}$ 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.

   Coordinate term: ordinate

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]

• absciss

• (first of two coordinates): coordinate
• (horizontal line): axis

• abscissa on Wikipedia.Wikipedia
• ordinate
• applicate

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

abscissa f (genitive abscissae); first declension

1. (New Latin, mathematics) abscissa

First-declension noun.

• → English: abscissa
• → Irish: aibsíse
• → Norwegian Bokmål: abscisse
  • → Northern Sami: abskissa
• → Portuguese: abscissa
• → Italian: ascissa

abscissā f

1. ablative singular of abscissa

See the etymology of the corresponding lemma form.

abscissa

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

abscissā

1. ablative feminine singular of abscissus

• abcissa (Portugal)

• Hyphenation: abs‧cis‧sa

abscissa f (plural abscissas) (Brazilian Portuguese spelling)

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

   Coordinate term: ordenada

• “abscissa”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “abscissa”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

abscissa c

1. alternative spelling of abskissa; abscissa