seiche

From Swiss French seiche, perhaps from German Seiche (“sinking”).

• (UK) IPA^(key): /seɪʃ/
• (US) IPA^(key): /seɪʃ/, /sit͡ʃ/

• Audio (US):

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• Rhymes: -eɪʃ

seiche (plural seiches)

1. (hydrology) A short-term standing wave oscillation of the water level in a lake, or other confined body of water such as a fjord, characteristic of its geometry.
   • 2024 A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days. Science 2024 Vol 385, DOI: 10.1126/science.adm9247

     In September 2023, we detected the start of a 9-day-long, global . . . very-long-period seismic signal, originating from East Greenland. . . .this event started with a glacial thinning-induced rock-ice avalanche of 25 million cubic meters plunging into Dickson Fjord, triggering a 200-meter-high tsunami. Simulations show that the tsunami stabilized into a 7-meter-high long-duration seiche with a frequency. . .and slow amplitude decay that were nearly identical to the seismic signal. An oscillating, fjord-transverse single force . . . reproduced the seismic amplitudes and their radiation pattern relative to the fjord, demonstrating how a seiche directly caused the 9-day-long seismic signal.

• Eiches

• IPA^(key): /sɛʃ/
• Rhymes: -ɛʃ
• Homophones: seiches, sèche, sèches, sèchent, Seix

From Latin sēpia, from Ancient Greek σηπία (sēpía).

seiche f (plural seiches)

1. cuttlefish

From Swiss French, of uncertain origin. Possibly from German.

seiche f (plural seiches)

1. (hydrology) seiche

• “seiche”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

• chiées

• (Ulster) IPA^(key): /ˈʃɛçə/, [ˈʃɛi̯çə]^[1]

seiche f (genitive singular seiche, nominative plural seichí)

1. Ulster form of seithe (“skin, hide”)

From Proto-Celtic *sekess, from Proto-Indo-European *sek- (“to cut”) (compare Icelandic sigg (“callus, hard skin”)).^[1]

• IPA^(key): /ˈɕexʲə/

seiche f

1. skin (of animal), hide

• Irish: seithe, seiche

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “1 seiche, seithe”, in eDIL: Electronic Dictionary of the Irish Language

From Latin sēpia, from Ancient Greek σηπία (sēpía).

seiche f (plural seiches)

1. (Jersey) cuttlefish

• IPA^(key): /ˈʃeçə/

seiche f (genitive singular seiche, plural seichean or seicheannan)

1. hide, skin, pelt (animal)