Definify.com
Webster 1913 Edition
Apsis
‖
Ap′sis
(ăp′sĭs)
, Noun.
pl.
Apsides
(ăp′sĭ-dēz)
. See
Apse
. [L.
apsis
, absis
, Gr. ἁψίς
, ἁψῖδος
, a tying, fastening, the hoop of a wheel, the wheel, a bow, arch, vault, fr. ἄπτειν
to fasten.] 1.
(Astron.)
One of the two points of an orbit, as of a planet or satellite, which are at the greatest and least distance from the central body, corresponding to the aphelion and perihelion of a planet, or to the apogee and perigee of the moon. The more distant is called the higher apsis; the other, the lower apsis; and the line joining them, the line of apsides.
2.
(Math.)
In a curve referred to polar coördinates, any point for which the radius vector is a maximum or minimum.
Webster 1828 Edition
Apsis
AP'SIS
,Noun.
1.
In astronomy, the apsides are the two points of a planet's orbit, which are at the greatest and least distance from the sun or earth; the most distant point is the aphelion, or apogee; the least distant, the perihelion or perigee. The line connecting these is called the line of the apsides.2.
Apsis or absis is the arched roof of a house, room or oven; also the ring or compass of a wheel.3.
In ecclesiastical writers, an inner part of a church, where the altar was placed, and where the clergy sat, answering to the choir and standing opposite to the nave. Also, the bishop's seat or throne in ancient churches; called also exedra and tribune. This same name was given to a reliquary or case in which the relics of saints were kept.Definition 2024
Apsis
Apsis
apsis
apsis
English
Noun
apsis (plural apsides)
- (architecture) A recess or projection, with a dome or vault, at the east end of a church; an apse.
- (astronomy) Either of the points in the elliptical orbit of a planet or comet where it is closest or furthest from the sun; perihelion or aphelion; an apside
Derived terms
Translations
architecture: apse
astronomy: point in elliptical orbit
Anagrams
Finnish
Noun
apsis
- (rare) An apse (architectural element).
Declension
| Inflection of apsis (Kotus type 39/vastaus, no gradation) | |||
|---|---|---|---|
| nominative | apsis | apsikset | |
| genitive | apsiksen | apsisten apsiksien |
|
| partitive | apsista | apsiksia | |
| illative | apsikseen | apsiksiin | |
| singular | plural | ||
| nominative | apsis | apsikset | |
| accusative | nom. | apsis | apsikset |
| gen. | apsiksen | ||
| genitive | apsiksen | apsisten apsiksien |
|
| partitive | apsista | apsiksia | |
| inessive | apsiksessa | apsiksissa | |
| elative | apsiksesta | apsiksista | |
| illative | apsikseen | apsiksiin | |
| adessive | apsiksella | apsiksilla | |
| ablative | apsikselta | apsiksilta | |
| allative | apsikselle | apsiksille | |
| essive | apsiksena | apsiksina | |
| translative | apsikseksi | apsiksiksi | |
| instructive | — | apsiksin | |
| abessive | apsiksetta | apsiksitta | |
| comitative | — | apsiksineen | |