Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine
1. A settled quantity or allowance. See Assize. "To scant my sizes."
2. An allowance of food and drink from the buttery, aside from the regular lunch at commons; corresponding to battel at Oxford.
3. Extent of superficies or volume; bulk; bigness; magnitude; as, the size of a wood or of a mast; the size of a nave or of a rock.
4. Figurative bulk; condition as to rank, capacity, nature, etc.; as, the office demands a man of larger size. "Men of a smaller size and quality." (L'Estrange) "The middling or lower size of people." (Swift)
5. A conventionalrelativemeasure of dimension, as for shoes, gloves, and another articles made up for sale.
6. An instrument consisting of a number of perforated gauges fastened together at oneend by a rivet, used for ascertaining the size of pearls. Size roll, a little piese of parchment added to a roll. Size stick, a measuring stick used by shoemakers for ascertaining the size of the foot.
Synonym: Dimension, bigness, largeness, greatness, magnitude.
Origin: Abbrev. From assize. See Assize, and cf. Size glue.
1. To fix the standard of. "To size weights and measures."
2. To adjust or arrange according to size or bulk. Specifically: To take the height of men, in order to seat them in the ranks according to their stature.
To sift, as pieces of ore or metal, in order to separate the finer from the coarser parts.
3. To swell; to magnify the bulk of.
4. To bring or adjust anything exactly to a required dimension, as by cutting. To size up, to evaluate or ascertain the nature and capacity of. See 4th Size. "We had to size up our lad legislators." (The Century)
Source: Websters Vocabulary