the removal of writings, typewriting, or printing

impressions left on papers positioned under a piece of paper that has been written on

a property exhibited by some dyes that emit infrared light when exposed to blue-green light

the study of the specific absorption of the infrared region of the electromagnetic spectrum; used in the study of chemical bonds within molecules

normal deviations found between repeated specimens of an individual's handwriting or any printing device

the blotting out or smearing over of writing or printing to make the original unreadable

any object that contains handwritten or typewritten markings whose source or authenticity is in doubt

the study of handwriting, used to infer a persons character and is not accepted in court

a method that separates compounds based on differences in their structure, size, and/or composition

any one of a number of characteristics of line determined by its weight, direction, uniformity, or other features

Is the text on the line, above the line, or below the line?

Is pressure equal when applied to upward and downward strokes?

the crossing of t's or dotting of i's and j's

an authentic sample used for comparison purposes, such as handwriting