Latin exstructio. <span class="searchmatch">extruction</span> (usually uncountable, plural <span class="searchmatch">extructions</span>) (obsolete) A building up; a construction. 1665, John Webb, A Vindication of Stone-Heng...
<span class="searchmatch">extructions</span> plural of <span class="searchmatch">extruction</span>...