Translingual edit

Etymology edit

From the Latin -āceae, the feminine plural of -āceus (resembling).

Pronunciation edit

  • English: IPA(key): /ˈeɪ.si.iː/, /ˈeɪ.si.aɪ/, /ˈeɪ.si.eɪ/

Suffix edit

-aceae f pl

  1. (taxonomy) Used to form the name of taxonomic families of plants, algae, bacteria, and fungi

Usage notes edit

  • A family name is formed from the name of a genus that belongs to the family by substitution of the ending of the genitive singular form with "-aceae".
  • There are only eight exceptions to the rule of using the -aceae termination for taxonomic families under the International Code of Nomenclature for algae, fungi, and plants (Melbourne Code, 2011), for a few widely used names that pre-date the rule. Each also has an accepted alternative (nomen alternativum), given in brackets:
  • In English, family names ending in -aceae are usually treated as plural (e.g., "Cunoniaceae are" or "the Cunoniaceae family is").
  • In English, most family names ending in -aceae follow the pronunciation patterns of /ˈeɪsi, -siˌaɪ, -siˌeɪ, -siˌi/) (e.g., Solanaceae, /ˌsoʊləˈneɪsi/).

Derived terms edit

See also edit

  • -idae (the equivalent for animals)

Latin edit

Pronunciation edit

Suffix edit


  1. inflection of -āceus:
    1. nominative/vocative feminine plural
    2. genitive/dative feminine singular

Descendants edit

  • Translingual: -aceae