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stem - primary and secondary

In typography, vertical or full-length angled strokes. Where there is a difference in the stroke thicknesses in printed characters with more than one stroke connecting to the baseline, the primary stem is thicker, and the secondary stem is thinner. 

stem primary secondary image
Credit: Academy Standards Board
Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
ASB Technical Report 071 Forensic Document Examination: Terms and Definitions. AAFS Academy Standards Board (ASB), 410 North 21st Street, Colorado Springs, CO, 2025. Source link
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