<span class="searchmatch">progradational</span> (not comparable) Relating to progradation...
<span class="searchmatch">progradationally</span> (not comparable) In a <span class="searchmatch">progradational</span> manner....
delta farther out into the sea over time, as it gains more sediment <span class="searchmatch">progradational</span> progradation on Wikipedia.Wikipedia progradation f (plural progradations)...