building mortar
nounUK /ˈbɪldɪŋ ˈmɔːtə/
US /ˈbɪldɪŋ ˈmɔːrtər/
A soft paste that holds bricks or stones together when it dries.
The worker spread building mortar between the bricks to keep the wall strong.
OTHER MEANINGS
2. A mixture of cement, sand, and water used in construction.
They mixed building mortar in a wheelbarrow before laying the stones.
3. The material used to fill gaps between tiles or blocks.
He repaired the cracked building mortar along the garden wall.
4. A bonding agent that hardens to join building units.
The old building mortar crumbled, so the wall needed repair.