Minimal - literal meanings; remaining at or acquiring a comparatively little elevation or upward extension; "low ceilings"; "small clouds"; "small hills"; "the Solar is small"; "low furnishings"; "a minimal bow" : possessing a specified extension within an implied route generally downward or backward a shelf twenty inches deep extending significantly https://reidnhync.blogoscience.com/42109205/drilled-pile-foundations-bd-an-overview