groutlock brick
[ grout-lok ]
/ ˈgraʊtˌlɒk /
noun
a brick chamfered on its inner angles to allow space for vertical and horizontal reinforcing rods sealed in grout.
Words nearby groutlock brick
groupuscule,
groupware,
grouse,
grout,
grout box,
groutlock brick,
grouts,
grouty,
grove,
grove city,
grovel