What Is A Tertiary Value?

What Is A Tertiary Value? 1 : of third rank, importance, or value. 2a : involving or resulting from the substitution of three atoms or groups a tertiary salt. What are 5 tertiary sources examples? Encyclopedias. Dictionaries. Textbooks. Almanacs. Bibliographies. Chronologies. Handbooks. Does tertiary mean 4? Tertiary means third in order, third in importance, or