diff --git a/eml-unitDictionary.xml b/eml-unitDictionary.xml
index c81ff425..ca1244d8 100644
--- a/eml-unitDictionary.xml
+++ b/eml-unitDictionary.xml
@@ -433,11 +433,12 @@
- SI unit of luminosity
+ SI base unit of luminous intensity (luminous power per unti solid angle emitted
+ by a point light source in a particular direction)
- a number
+ a quantity or amount
- one minute excluding leap seconds, 60 seconds
+ one minute of time excluding leap seconds, 60 seconds
@@ -513,12 +514,15 @@
- metric ton or tonne
+ unit of mass equal to 1,000 kilograms, equivalent to approximately 2,204.6
+ pounds,1.102 short tons (US) or 0.984 long tons (imperial).
+ Not part of the SI, but accepted for use with SI units and prefixes
- 1 pound in the Avoirdupois (commerce) scale
+ 1 pound (symbol lb) in the Avoirdupois (commerce) scale, and defined
+ as exactly 0.45359237 kg. Also equal to 16 avoirdupois ounces and to 7,000 grains.
@@ -533,7 +537,8 @@
- An obsolescent unit of temperature still used in popular meteorology
+ unit for temperature on the scale in which water freezes at 32 and boils
+ at 212 under standard conditions.
@@ -584,7 +589,8 @@
- An imperial measure of length
+ unit of length in the (British) imperial and United States systems
+ usually understood as 1/12 f a foot.
- nautical mile
+ defined as exactly 1,852 meters (6,076.1 ft; 1.1508 mi). Historically,
+ defined as one minute of latitude.
@@ -762,7 +769,7 @@
- hertz
+ derived unit of frequency in the SI, defined as one cycle per second
@@ -782,11 +789,12 @@
- 1 cal = 4.1868 J
+ unit of energy: amount of energy to raise the temperature of one gram of water
+ by one degree Celsius at a pressure of one atmosphere. cal = 4.1868 J
- 1 btu = 1055.0559 J
+ an energy unit: 1 btu = 1055.0559 J