We found one dictionary that defines the word subthecal:

General (1 matching dictionary)

1. subthecal: Wiktionary

Definitions from Wiktionary (subthecal) ▸ adjective:  Below the theca. ▸ Words similar to subthecal ▸ Usage examples for subthecal ▸ Idioms related to subthecal ▸ Wikipedia articles (New!) ▸ Popular nouns described by subthecal ▸ Words that often appear near subthecal ▸ Rhymes of subthecal ▸ Invented words related to subthecal