ABSTRACT
Single-letter designation of the purine base adenine.
AAFS
American Academy of Forensic Sciences
ABC
American Board of Criminalistics
absorbance
The measure of concentration of material present; the negative log (base10) of transmittance [-log 1/T] of product of extinction coefficient, pathlength, and concentration, written as A = Ebc
absorption
A mechanical phenomenon wherein one substance penetrates into the inner structure of another, as in absorbent cotton or a sponge. An optical phenomenon wherein atoms or molecules block or attenuate the transmission of a beam of electromagnetic radiation.
