| compensatory polycythemia | A secondary polycythemia resulting from anoxia, e.g., in congenital heart disease, pulmonary emphysema, or prolonged residence at a high altitude. (05 Mar 2000) |
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| relative polycythemia | A relative increase in the number of red blood cells as a result of loss of the fluid portion of the blood. (05 Mar 2000) |
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| compensatory | Providing compensation; making up for a deficiency or loss. (05 Mar 2000) |
| compensatory atrophy | Atrophy especially of an endocrine organ as a result of its function being assumed by a new source of hormone. (05 Mar 2000) |
| compensatory circulation | Circulation established in dilated collateral vessels when the main vessel of the part is obstructed. (05 Mar 2000) |
| compensatory hypertrophy | Increase in size of an organ or part of an organ or tissue, when called upon to do additional work or perform the work of destroyed tissue or of a paired organ. (05 Mar 2000) |
| compensatory hypertrophy of the heart | Thickening of the walls of the heart in response to vascular, valvular, other heart disease, or athletic conditioning. (05 Mar 2000) |
| compensatory pause | The pause following an extrasystole, when the pause is long enough to compensate for the prematurity of the extrasystole; the short cycle ending with the extrasystole plus the pause following the extrasystole together equal two of the regular cycles. (05 Mar 2000) |
| polycythemia | The opposite of anaemia. Too many red blood cells. Polycythemia formally exists when the haemoglobin, red blood cell count, and total rbc volume are all above normal. (12 Dec 1998) |
| polycythemia hypertonica | Polycythemia associated with hypertension, but without splenomegaly. Synonym: Gaisbock's syndrome. (05 Mar 2000) |
| polycythemia rubra | Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). Pv tends to evolve into acute leukaemia or a condition with the marrow replaced by scar tissue (myelofibrosis) (12 Dec 1998) |
| polycythemia rubra vera | Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). Pv tends to evolve into acute leukaemia or a condition with the marrow replaced by scar tissue (myelofibrosis) (12 Dec 1998) |
| polycythemia vera | Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). Pv tends to evolve into acute leukaemia or a condition with the marrow replaced by scar tissue (myelofibrosis) (12 Dec 1998) |