"Paratriptic" is a relatively uncommon word that refers to something being unable to be trypsinized. It is pronounced /ˌpærətraɪpˈtɪk/, with stress on the third syllable. The initial "para-" prefix suggests something opposed to or beyond trypsinization, while "triptic" is clearly derived from "trypsin." The "tic" ending may indicate an adjectival form corresponding to nouns like "protease" or "protein." Despite its obscure nature, the spelling of "paratriptic" is fairly predictable based on its components.
1. Causing or caused by chafing. 2. Retarding catabolic processes. 3. An agent, such as coffee, which retards tissue waste.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.