| 21111 | O Alphabetical Letter | |
| 22423 | O.A.N. + OSTEO ARTHRITIC FLUID | |
| 2039 | O.A.N. see OSTEO-ARTHRITIC NOSODE | |
| 18744 | O1 | |
| 722 | OAK | |
| 16998 | OAK | |
| 12417 | OAK F.E. | |
| 21503 | OAK Common (Quercus Robur) Herb | |
| 21503 | OAK English see OAK Common (Quercus Ro | bur) Herb |
| 23038 | OAKMOSS (Evernia prunastri) | |
| 7075 | OARWEED see FANGLE (Laminaria Digitata | ) Herb |
| 5824 | OATS | |
| 25682 | OATS | |
| 22358 | OATS Common (Avena Sativa) F.E. | |
| 746 | OBEDIA (OKOUBACA) DELETED | From 27 |
| 22815 | OBEDIENCE Canine | |
| 2144 | OBESITY | |
| 20575 | OBESITY Mixture 131 | |
| 20576 | OBESITY Mixture 132 | |
| 20577 | OBESITY Mixture 133 | |
| 9682 | OBEY HOMOGENEOUS SOUL | |
| 8523 | OBLIQUE VEIN OF LEFT ATRIUM | |
| 8524 | OBLIQUUS ABDOMINIS EXTERNUS | |
| 7198 | OBLIQUUS ABDOMINIS INTERNUS MUSCLE | |
| 4877 | OBLIQUUS CAPITIS INFERIOR MUSCLE | |
| 4878 | OBLIQUUS CAPITIS SUPERIOR MUSCLE | |
| 7665 | OBLIQUUS OCULI INFERIOR | ` (INFERIOR OBLIQUE MUSCLE) |
| 5563 | OBLIQUUS OCULI SUPERIOR | ` [SUPERIOR OBLIQUE MUSCLE] |
| 9782 | OBLIVION | |
| 2142 | OBSESSION | |
| 9783 | OBSESSION [BLIND BELIEF] | |
| 9168 | OBSESSIONAL DOUBTS | |
| 8838 | OBSESSIVE DOUBT | |
| 21471 | OBSESSIVE-COMPULSIVE DISORDER | |
| 19908 | OBSIDIAN Gem | |
| 6412 | OBSIDIAN Mineral | |
| 23809 | OBSIDIAN G. & C.E. | |
| 20918 | OBSIDIAN - Green G.E. | |
| 22834 | OBSIDIAN - Snowflake G.E. | |
| 19994 | OBSIDIAN-BLACK Gem | |
| 5416 | OBSOLETE ACQUIRED CHARACTERISTICS | |
| 8740 | OBSTACLE TO CURE | |
| 13549 | OBSTINANCY | |
| 9784 | OBSTRUCTION | |
| 24646 | OBTURATOR ARTERY | |
| 24647 | OBTURATOR ARTERY - Anterior Branch | |
| 24648 | OBTURATOR ARTERY - Posterior Brancj | |
| 8697 | OBTURATOR CANAL - BUTTOCK | |
| 24640 | OBTURATOR CREST | |
| 8693 | OBTURATOR EXTERNUS MUSCLE | |