A foraminifer.

plural of foram

The opening at either end of the alar canal, with the rostral alar foramen closer to the nose and the caudal or posterior alar foramen closer to the back of the skull.

(medicine, anatomy, embryology) An opening in the septum between the right and left atria of the fetal heart that normally closes after birth.

(anatomy) An opening, an orifice, or a short passage, especially in a bone.

Synonym of foraminifer (“any of a large group of aquatic amoeboid protists of the subphylum Foraminifera, characterized by streaming granular ectoplasm that among other things is used for catching food, often with a calcareous shell with many holes through which pseudopodia protrude”)

plural of foraminiferon / plural of foraminiferum

plural of foramen

Any of a large group of aquatic amoeboid protists of the subphylum Foraminifera, characterized by streaming granular ectoplasm that among other things is used for catching food, often with a calcareous shell with many holes through which pseudopodia protrude.

plural of foraminifer