From hyper- + extendable. <span class="searchmatch">hyperextendable</span> (not comparable) Capable of hyperextension. 2015 June 8, Melanie May et al., “ZC4H2, an XLID gene, is required...
the arm is designed to reach out 10 feet and have a lateral range of 120 degrees. <span class="searchmatch">hyperextendable</span> nonextendable unextendable capable of being extended...