bis-

bis-

1. An occasional variant of bi- prefixed to roots beginning with a vowel, as in bisalternate
2. (chemistry, obsolete) A variant of di- used to indicate that the component that does not take the prefix occurs twice in the compound: a bisoxide is of the form B₂O (cf. dioxide for XO₂)
3. (mathematics, chemistry) A variant of di-, used for substitutions of two complex rather than simple units.

   Bis (η⁶-arene) metal complexes have been made for many transition metals by the Al/AlCl₃ reduction method.

• tris-
• tetrakis-

• SBI, SIB, IBs, BSI, sib, IBS

• IPA^(key): /bis/
  • Hyphenation: bis-
• IPA^(key): /biz/ (before a vowel or a voiced consonant)

From Latin bis (“twice”).

bis-

1. alternative form of bi-; bis-; di-

   ‎bis- + ‎croma (“quaver”) → ‎biscroma (“demisemiquaver”)

2. great-

   ‎bis- + ‎nonno (“grandfather”) → ‎bisnonno (“great-grandfather”)

Unknown

bis-

1. used with adjectives or verbs to denote a generic pejorative connotation

   ‎bis- + ‎unto (“oily, greasy”) → ‎bisunto (“very oily or greasy”)

• biz-

From Latin bis (“twice”).

bis-

1. bis-
2. great-

• “bis-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 10 December 2024