From sub- + trial. <span class="searchmatch">subtrial</span> (plural <span class="searchmatch">subtrials</span>) A subordinate trial...
<span class="searchmatch">subtrials</span> plural of <span class="searchmatch">subtrial</span>...
posttrial pretrial put on trial retrial sea trial show trial stand trial <span class="searchmatch">subtrial</span> time trial trialable trial and error trial balance trial balloon trial...