1. a ledger in which transactions have been recorded as they occurred

2. the mathematics of generalized arithmetical operations

4. a short note recognizing a source of information or of a quoted passage

5. a licensed medical practitioner

6. study of the earth's surface; includes people's responses to topography and climate and soil and vegetation

8. a person with advanced knowledge of one or more sciences

10. a doctorate usually based on at least 3 years graduate study and a dissertation; the highest degree awarded graduate study

3. nourishing at the breast

7. a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation

9. the procedure of calculating; determining something by mathematical or logical methods

11. a workplace for the conduct of scientific research

12. a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement