is a theoretical component of Coltheart's dual-route reading model that refers to using spelling-to-sound correspondences to convert a written word (i.e. orthography) into a spoken word (i.e. phonology). In other words, it is the route by which letters are linked to their sounds and the sounds are assembled into a whole word pronunciation. It complements the lexical route where the whole word is recognized and linked to its sound.
Asserted relationships to other concepts
Tasks that are asserted to measure sublexical route
"Whether or not a sublexical route of reading truly exists is hotly contested. As a result I made the assertions as conjecture rather than as fact."
JDevlin (about eight years ago)