From macro- + sclereid. <span class="searchmatch">macrosclereid</span> (plural <span class="searchmatch">macrosclereids</span>) (botany) A columnar sclereid that forms an outer layer in various fruit and seeds. 1967...
<span class="searchmatch">macrosclereids</span> plural of <span class="searchmatch">macrosclereid</span>...