HAVERSINE
Meaning of HAVERSINE in English
/hav"euhr suyn'/ , n. Trigonom.
one half the versed sine of a given angle or arc.
[ 1870-75; HA(LF) + VER(SED) + SINE 1 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012