From under- + tile. <span class="searchmatch">undertile</span> (not comparable) (engineering, construction) Of or pertaining to an area or surface beneath or below tile....
board (plural valley boards) (construction) A timber board supporting a metal valley iron or <span class="searchmatch">undertile</span> gutter where two sections of a pitched roof meet....
tile-matching game tile ore tile red tile saw tile tracking tilework Truchet tile <span class="searchmatch">undertile</span> vinyl composition tile Wang tile weeping tile → Bengali: টালি (ṭali) →...