<span class="searchmatch">acrembolic</span> (not comparable) (biology) Able to be withdrawn by muscles that cause the tip to sink inwards. 2003, Michael Schrödl, Sea slugs of southern...
Lindberg, Phylogeny and Evolution of the Mollusca, →ISBN, page 346: The <span class="searchmatch">acrembolic</span> type has appeared independently several times in gastropods, including...