| A | B |
| aural | Pertaining to or perceived by the ear. |
| oral | Pertaining to the mouth; taken through or applied in the mouth. |
| bolus | A rounded mass of food or medicinal preparation ready to swallow, or such a mass passing through the gastrointestinal tract; a mass of pahrmaceutical preparation given intravenously for diagnostic purposes. |
| bullous | Pertaining to or characterized by bullae (a large vesicle, more than 5 mm in circumference, containing serous or seropurulent fluid-also called a bleb or a blister). |
| brachial | Pertaining to the arm. |
| branchial | Pertaining to or resembling the gills of a fish. |
| bronchial | Pertaining to one or more bronchi (a subdivision of any of the larger air passages of the lungs). |
| bulbous | A rounded mass or enlargement. |
| bulbus | Having the form or nature of a bulb; bearing or arising from a bulb. |
| callus | Localized hyperplasia of the horny layer of the epidermis due to pressure or friction (noun). |
| callous | Hard, like callus. |