<span class="searchmatch">protoelements</span> plural of <span class="searchmatch">protoelement</span>...
proto- + element <span class="searchmatch">protoelement</span> (plural <span class="searchmatch">protoelements</span>) A prototypical element of something....
protodramatic Proto-Dravidian protodynastic proto-Earth protoecumenical protein <span class="searchmatch">protoelement</span> protoelongate protoethical protoeukaryote protofascism protofascist protofeather...