igester
The term "igester" does not correspond to any recognized scientific, technical, or widely accepted common term. It is possible that "igester" is a neologism, a misspelling, or a term specific to a very niche context that is not broadly documented.
If "igester" is intended to be a misspelling of "digester," then it would refer to a vessel
Alternatively, the term "igester" could potentially be a portmanteau or a novel term from a specific fictional