The Collaborative International Dictionary
Foraminous
Foraminous \Fo*ram"i*nous\, a. [L. foraminosus.]
Having foramina; full of holes; porous.
--Bacon.
Douglas Harper's Etymology Dictionary
foraminous
"full of holes," 1620s, from Late Latin foraminosus, from Latin foramen "hole, opening" (see foramen).
Wiktionary
foraminous
a. Covered with holes or foramen.