the ratio of the permeability of a medium to that of free space μr
noun, Music. 1. the pitch of a tone as determined by its relationship to other tones in a scale. 2. the ability to identify or sing a tone by mentally determining the distance of its pitch from that of a tone already sounded.
- Relative polycythemia
relative polycythemia n. A relative increase in the number of red blood cells as a result of loss of the fluid portion of the blood.
noun 1. one of the pronouns who, whom, which, what, their compounds with -ever or -soever, or that used as the subordinating word to introduce a subordinate clause, especially such a pronoun referring to an antecedent.
- Relative record data set
database (RRDS) One of the access methods used by IBM’s VSAM. [What is it?] (1999-01-12)