Category: M

A wormlike arthropod with two pairs of legs on each body segment. Some produce an irritating venom.  

One thousandth of an osmole; the osmotic pressure equal to one thousandth of the molecular weight of a substance divided by the number of ions that the substance forms in a liter of solution.  

One thousandth of a lambert, a unit of light intensity. About one foot-candle, but more accurately, it is 0.929 lumens per square foot.  

A practical unit of dosage for radon: 1 mCi of radon applied for 1 hr. The biological effect depends on time, filtration, and distance.  

One thousandth of a curie. A practical unit of dosage for a radioactive source: 1 mCi of a radioactive substance applied for 1 hr.  

A unit of electric current, one thousandth ( 10¯³) of a coulomb.  

One thousandth of a bar, which is 100 newtons/sq m. The normal atmospheric pressure of 14.7 lb/sq in is equal to 1013 millibars.  

A unit used in radiographic imaging that is equal to the product of the current used in milliamperes and the time in seconds. It is the primary unit for determining the density or brightness of an ionizing radiation image.  

An electrical unit of quantity, equivalent to that delivered by 1 milliampere in 1 min.  

One-thousandth of an ampere.