英和和英

発音

• IPA: /ˌspi.siˈeɪ.ʃən/, /ˌspi.ʃiˈeɪ.ʃən/
• 韻: -eɪʃən
• ハイフネーション: spe‧ci‧a‧tion

名詞

speciation (usually uncountable, plural speciations)

1. (taxonomy) The process by which new distinct species evolve.
   • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 3:

     In both groups, however, we find copious and intricate speciation so that, often, species limits are narrow and ill defined.

   • 2014, Elizabeth Kolbert, The Sixth Extinction: An Unnatural History, Picador, →ISBN, page 55:

     No one had ever seen a new species produced, nor, according to Darwin, should they expect to. Speciation was so drawn out as to be, for all intents and purposes unobservable.

2. (chemistry) The formation of different (inorganic) species (especially of ions) as the environment changes.
3. (medicine, pathology) The determination of which species are present in a fluid or tissue specimen, bacterial culture, or viral culture.

   requirements specifying speciation and serotyping in addition to reporting of presence or absence

反意語

• despeciation

派生語

関連する語

• specialization

参考