TWI

See also: twi, Twi, twi-, twî, and ƫwi

English

Proper noun

TWI

  1. (rail transport) The station code of Twickenham railway station in England.
  2. Initialism of The Welding Institute, a research organization in the UK.
  3. (rail transport) The station code of Tin Wing stop in Hong Kong.

Noun

TWI (plural TWIs)

  1. (toxicology) Initialism of tolerable weekly intake.
    Hyponym: PTWI
    Coordinate term: TDI
    • 2005, Przemysław Mastalerz, The True Story of DDT, PCB, and Dioxin, Wydawnictwo Chemiczne, →ISBN, page 91:
      In May 2001 an expert committee has decided that tolerable doses should be expressed as tolerable weekly intake (TWI) and established TWI = 14 pg/kg.
  2. (hydrology) Initialism of topographic wetness index.
    • 2021 September 5, Vineet Upadhyay, “Less oak cover in Himalayas could threaten biodiversity: Study”, in The New Indian Express‎:
      The key reason for the replacement of oak forests was attributed to the presence of more pines in the surrounding landscape, lower levels of winter precipitation, and Topographic Wetness Index (TWI), a measure which quantifies terrain-driven variation in soil moisture.
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