Webster's English Dictionary

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foramen

fo.ra.men or fo.ram.i.nous \f*-'ra--m*n\ \-'ram-*-n*\ \-'ra--m*nz\ 
   \f*-'ram-*n-*l\ \-*-n*s\ n or fo.ram.i.na or fo.ra.mens [L foramin-, 
   foramen, fr. forare to bore - more at BORE)] plM : a small opening, 
   perforation, or orifice : FENESTRA  - fo.ram.i.nal aj