different between gibbous vs undefined

English

Etymology

From Middle English, borrowed from Latin gibbus (“humped, hunched”), probably cognate with cub? (“bend oneself, lie down”), Italian gobba (“humpback”), Greek ????? (kýfos, “humpback, bent”), ????? (kývos, “cube, vertebra”), Spanish giboso (“humped”).

Pronunciation

• IPA^(key): /???b?s/
• Rhymes: -?b?s

Adjective

gibbous (comparative more gibbous, superlative most gibbous)

1. Characterized by convexity; protuberant.
   • 1886, Thomas Hardy, The Mayor of Casterbridge, chapter 22

     In fact, what these gibbous human shapes specially represented was ready money—money insistently ready [...]

2. (astronomy) Phase of moon or planet between first quarter and full or between full and last quarter.
3. Humpbacked.
   • 1697, Dryden, Aeneid, book 8

     A pointed flinty rock, all bare and black,

     Grew gibbous from behind the mountain's back;

Antonyms

• crescent

Derived terms

• gibbous moon

Translations

English

Etymology

un- +? defined

Adjective

undefined (not comparable)

1. Lacking a definition or value.
2. (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.

   The result of division by zero is undefined.

Synonyms

• (lacking a definition or value): indefinite, undefinable; see also Thesaurus:indistinct or Thesaurus:vague

Antonyms

• defined

Translations