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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: E to exponent.

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
E:  A

E (letter of the alphabet)
e.m.u. system (electromagnetics)
e.s.u. system (electromagnetics)
Earth mass (astrophysics)
eclipse year (astronomy)
eighth-mile (length)
einstein (unit)
electric constant (electricity)
electromagnetic centimetre (electromagnetic inductance)
electron (in physics)
electron volt (unit, measure)
electrostatic centimetre (electromagnetic capacitance)
ell (conversion factor)
EM unit (electromagnetics)
EN (Public Company)
en (print measure)
engineering mass unit (engineering)
Engler degree (viscosity)
eötvös (geophysics)
Ephemeris Time (in astronomy)
equivalent weight (in chemistry)
er (radiation physics)
erg (unit)
erlang (technology)
ES unit (electromagnetics)
Eu (chemical symbol)
Euler's constant (mathematics)
EVT (chemical engineering)
exa- (prefix)
exbi- (informatics)
exponent (in mathematics)