declinometer
— Noun
– English
~ an instrument for measuring magnetic declination
declivitous
— Adjective
– English
~ sloping down rather steeply
declivity
— Noun
– English
~ a downward slope or bend
Declomycin
— Noun
– English
~ tetracycline antibacterial (trade name Declomycin) effective in the treatment of some bacterial and rickettsial and other infections