habitable zone
(redirected from Circumstellar Habitable Zones)Also found in: Dictionary.
Related to Circumstellar Habitable Zones: Solar System Habitable Zone
habitable zone
the area around a star (such as the sun) in which there is sufficient energy present to sustain life.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005