Xerotolerance

Part of speech: noun

Definitions

1. The capability of certain organisms to endure dry conditions involves both metabolic adjustments and structural changes
2. It refers to the ability of living entities to survive in habitats with limited water availability, adjusting their physiology and morphology
3. This property denotes the resistance of species to arid environments, allowing them to thrive despite low moisture levels

Etymology: Xerotolerance is a plain technical compound, built from the Greek-derived combining form "xero-", meaning dry, attached to the English word "tolerance" in its biological sense of an organism's capacity to endure a harsh condition. The pattern is the same as the more familiar "halotolerance" (tolerance of salt) and "thermotolerance" (tolerance of heat), so the word's meaning can be read straight off its parts: an organism's ability to withstand dryness. The "xero-" element comes from Greek "xēros", "dry", and it appears in English scientific coinages such as "xerophyte", a plant adapted to arid conditions, and "xerophilous", meaning dry-loving. Those older terms show the same root applied to plants and habitats, and "xerotolerance" extends that vocabulary to describe the tolerance itself rather than the organism that possesses it.