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gradability

American

[grey-duh-bil-i-tee] / ˌgreɪ dəˈbɪl ɪ ti /

Or gradeability

noun

Transportation.

a measure of a truck's pulling power expressed as the steepest grade the truck can climb with a full load.

First recorded in 1950–55; grade + -ability

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023