| OHI | Occupational Health Institute; operative hypertension indicator; oral hygiene index; Oral Hygiene In... |
|---|---|
| ss | semis; one half; 반 |
| beta [Greek letter beta] | an anomer of a carbohydrate; buffer capacity; carbon separated from a carboxyl by one other carbon i... |
| D1 | diagonal one; first dorsal vertebra |
| 1-D | one-dimensional |