The word is in the Wiktionary

4 short excerpts of Wiktionnary (A collaborative project to produce a free-content dictionary.)

— English words —

• periapsis n. (Astronomy, astrophysics) The point of a body’s (elliptical) orbit in a 2-body gravitational system…
• periapsis n. The minimum distance between the two bodies in such a system.

— Foreign word, define in English —

• Finnish
  • periapsis n. (Astronomy) periapsis.

— English word, defined in French —

• periapsis n. (Astronomie) Périastre.

17 English words from 3 English definitions

Astronomy astrophysics between bodies body distance elliptical gravitational minimum of␣a orbit periapsis point such system the two

2 foreign words from the foreign definition

Astronomie Périastre

25 words-in-word (Words found as is inside the word. Minimum size 3 letters.)

APs APS apsis Eri. IAP IAPs per PER per- per. Per. peri Peri peri- peria psi PSI psis PSIS ria RIA sis SIs SIS -sis

27 words-in-word RTL (Words found written from right to left, inside the word. Minimum size 3 letters.)

air 'air aire Aire -aire ire IrE IRE Ire. isp Isp ISP pair Pair paire rep Rep REP Rep. sis SIs SIS -sis spa Spa SpA SPA

2 anagrams found with an extra letter (New words formed with all the letters from the word and an extra letter.)

epiphrasis papistries

3 anagrams found minus a letter (New words formed with all the letters from the word minus a letter.)

airpipes apprises pariesis

One cousin (New word found by changing only one letter.)

periapses

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