Looking for the meaning of the word SUBGRADE in English for both noun and verb forms from the Oxford Dictionary? Below, you can explore all possible meanings and definitions of SUBGRADE with sentence examples. You can also use the “AUDIO PRONUNCIATION” track to check the correct pronunciation in British English.
Word: Subgrade
Speech Type: Noun
Etymology:
late 18th century. From sub- + grade
Definition:
A subsidiary or subordinate grade; a secondary gradation; a grade within a grade.
Definition:
In the construction of roads and other flat load-bearing surfaces: the layer (typically the prepared natural ground) lying immediately beneath the foundations.
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