| LOMSA | left otitis media suppurativa acuta |
|---|---|
| LOMSC, LOMSCh | left otitis media suppurativa chronica |
| MOM | milk of magnesia; mucoid otitis media |
| OM | obtuse mental; occipitomental; occupational medicine; ocular movement; oculomotor; Osborne Mendel [r... |
| OMAC | otitis media, acute catarrhal |