英和和英

語源

From river +‎ bed. Compare Dutch rivierbedding (“riverbed”), German Flussbett (“riverbed”), Swedish flodbädd (“riverbed”).

発音

• (Received Pronunciation) IPA: /ˈɹɪv.əˌbɛd/
• (General American) enPR: rĭvʹər-bĕd', IPA: /ˈɹɪv.ɚˌbɛd/
• (African-American Vernacular, some speakers) IPA: [ˈɹɪv.ɚˌbeː]
• (Australia) IPA: /ˈɹɪv.əˌbed/
• ハイフネーション: riv‧er‧bed

名詞

riverbed (plural riverbeds)

1. (hydrology) The path where a river runs, or where a river once ran; the bottom earthen part of a river, not including the riverbanks.

   Synonym: river bottom

   Hypernyms: bed, bottom < site, place, location

   Coordinate terms: lakebed; seabed

   Near-synonyms: streambed, creekbed

   • 2014 October 31, David W. Lloyd, “Deep in Vietnam, Exploring a Colossal Cave”, in The New York Times‎:

     The Hang En tour involves a difficult daylong trek over limestone mountain paths and along riverbeds to the remote indigenous village of Ban Doong.

   • 2021 September 8, “Network News: West Coast Main Line viaducts reinforced by underwater concrete”, in RAIL, number 939, page 10:

     Detailed laser surveys carried out by Network Rail revealed that fast-flowing water on the River Eden has caused parts of the riverbed to wash away, posing a risk to the viaduct foundations.

   • 2025 September 11, Matthew Glasser, Julia Jacobo, “Rock found on Mars could be evidence of ancient life, NASA says”, in ABC News‎:

     Potential signs of microbial life were found in a rock sample collected by the rover in 2024 from an ancient dry riverbed on Mars' Jezero Crater -- an area of rocky outcrops on the edges the Neretva Vallis, a river valley carved by water rushing to the canyon billions of years ago, NASA officials announced in a press conference on Wednesday.

参考

Further reading

• riverbed on Wikipedia.Wikipedia