Anhistous

• (a.) Without definite structure; as, an anhistous membrane.
Found on http://thinkexist.com/dictionary/meaning/anhistous/

Anhistous

An·his'tous adjective [ Greek 'an priv. + 'isto`s web, tissue: confer French anhiste .] (Biol.) Without definite structure; as, an anhistous membrane.
Found on http://www.encyclo.co.uk/webster/A/84
No exact match found