subgrade

[ suhb-greyd ]
/ ˈsʌbˌgreɪd /
Civil Engineering, Building Trades.

noun

the prepared earth surface on which a pavement or the ballast of a railroad track is placed or upon which the foundation of a structure is built.

adjective

beneath the finished ground level of a project.

QUIZZES

PRACTICE SOME ESCAPISM WITH THIS WORD OF THE DAY QUIZ!

We salute you if you remember all the doovers from Word of the Day between May 25 and May 31!
Question 1 of 7
salute
to call out to in order to stop, attract attention, ask aid, etc.
to wield power; exercise rule.
to express respect or praise for; honor; commend.
TAKE THE QUIZ TO FIND OUT

Origin of subgrade

First recorded in 1895–1900; sub- + grade

Words nearby subgrade

subgingival, subgingival curettage, subgingival space, subglacial, subglossal, subgrade, subgroup, subgrundation, subgum, subha, subhalide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for subgrade

British Dictionary definitions for subgrade

subgrade
/ (ˈsʌbˌɡreɪd) /

noun

the ground beneath a roadway or pavement
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012