H and D speed
noun
¦āchənˈdē-
: a number indicating the sensitivity of a photographic emulsion determined by the method of Hurter and Driffield
Word History
Etymology
after Ferdinand Hurter and Charles Driffield fl 1890
- meridian passage
- meridian sailing
- meridians
- meridic
- Meridion
- meridional
- meridional difference of latitude
- meridional distance
- meridional part
- meridional projection
- meridionality
- meridionally
- meridionals
- merils
- merimdean
- Merimdian
- mering
- meringue
- meringued
- meringuer
- meringues
- meringuing
- merino
- merinos
- Merion bluegrass