Sclerophylly
[skleer-uh-fil-ee] /ˈsklɪər əˌfɪl i/
noun, Botany.
1.
the normal development of much sclerenchyma in the leaves of certain plants, as some desert plants, resulting in thickened, hardened foliage that resists loss of moisture.
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noun 1. a scintillation counter adapted for measuring the energy distribution of particles emitted in radioactive processes.