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Measures and Units


This resource provides clear definitions of all the units, prefixes and styles of the Système International (SI), as well as traditional and industry-specific units. The terms are taken from a broad range of subjects including astronomy, electromagnetics, geology, photography, mathematics, meteorology, physics, and temperature.
On this page: o.d. to ouncedal.

Title Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
O:  A

o.d. (medicine)
octane number (automotives)
octave (music)
oerstedt (electrics)
ohm (measure)
ohma (electromagnetics)
ohmad (electromagnetics)