Definition of haversine in English:

haversine

(also haversin)

noun

Mathematics
  • Half of a versed sine.

    • ‘By the device of using versines instead of haversines in these tables it will be found that solutions of the astronomical triangle will be correct to within one minute of arc.’
    • ‘The pulse shape is usually assumed to be of haversine, half-sine or some other tapered rectangular shape.’
    • ‘The calculation is done using the haversines formula.’
    • ‘For all intents and purposes, the haversine is the most accurate way to calculate distance on a sphere.’
    • ‘Regardless of whether you choose to use the sight reduction tables or prefer the haversine formula you will require a nautical almanac.’

Origin

Late 19th century: contraction of half versed sine.

Pronunciation:

haversine

/ˈhavəsʌɪn/