Definition of waterplane in English:

waterplane

Line breaks: water|plane
Pronunciation: /ˈwɔːtəplɛɪn
 
/

noun

The horizontal plane which passes through a floating ship on a level with the waterline: [as modifier]: small waterplane area, twin hull
More example sentences
  • Note also that all of the waterplanes presented are for a calm sea surface condition for simplicity.
  • The disturbance to proper waterplane shape is the cause of many speed and handling related problems.
  • Ensuring this behavior is largely dependent on the designer having selected enough waterplane area.

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict