abscissa
English
Etymology
By ellipsis from Latin [linea] abscissa, feminine of abscissus, perfect passive participle of abscindō (“cut off”). See abscind.
Pronunciation
Noun
abscissa (plural abscissas or abscissae or abscissæ)
- (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]
- Coordinate term: ordinate
- The point has 3 as its abscissa and 2 as its ordinate.
- (geometry) The horizontal line representing an axis of a Cartesian coordinate system, on which the abscissa (sense above) is shown.
- Coordinate term: ordinate
Usage notes
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
Hypernyms
- (first of two coordinates): coordinate
- (horizontal line): axis
Translations
first of two coordinates
|
horizontal axis
|
See also
References
- ↑ 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
Etymology 1
From abscissus, perfect passive participle of abscindō (“tear away”).
Pronunciation 1
Noun
abscissa f (genitive abscissae); first declension
Declension
First-declension noun.
singular | plural | |
---|---|---|
nominative | abscissa | abscissae |
genitive | abscissae | abscissārum |
dative | abscissae | abscissīs |
accusative | abscissam | abscissās |
ablative | abscissā | abscissīs |
vocative | abscissa | abscissae |
Descendants
- → English: abscissa
- → Irish: aibsíse
- → Norwegian Bokmål: abscisse
- → Northern Sami: abskissa
- → Portuguese: abscissa
- → Italian: ascissa
Pronunciation 2
Noun
abscissā f
- ablative singular of abscissa
Etymology 2
See the etymology of the corresponding lemma form.
Participle
abscissa
- inflection of abscissus:
- nominative/vocative feminine singular
- nominative/accusative/vocative neuter plural
Participle
abscissā
- ablative feminine singular of abscissus
Portuguese
Alternative forms
Pronunciation
- (Brazil) IPA(key): /a.biˈsi.sɐ/, /abˈsi.sɐ/
- (Southern Brazil) IPA(key): /abˈsi.sa/, /a.biˈsi.sa/
- Hyphenation: abs‧cis‧sa
Noun
abscissa f (plural abscissas) (Brazilian Portuguese spelling)
Swedish
Noun
abscissa c
Declension
nominative | genitive | ||
---|---|---|---|
singular | indefinite | abscissa | abscissas |
definite | abscissan | abscissans | |
plural | indefinite | abscissor | abscissors |
definite | abscissorna | abscissornas |