DECLINOMETER
Meaning of DECLINOMETER in English
/dek'leuh nom"i teuhr/ , n.
an instrument for measuring magnetic declination.
[ 1855-60; DECLIN(ATION) + -o- + -METER ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012