co·log·a·rithm 
(kō′lôgə-rĭth′əm, -lŏgə-)
(kō′lôgə-rĭth′əm, -lŏgə-)n.
The logarithm of the reciprocal of a number.
- double-dealer
- double-dealing
- double-decker
- double-digit
- double digits
- double-dip
- double dipper
- double-dip recession
- double displacement
- double-double
- double dribble
- double dutch
- double-edged
- double-entendre
- double entry
- double-faced
- double fault
- double-fault
- double feature
- double fertilization
- double figure
- double flat
- double genitive
- double Gloucester
- double-handed