Submitted by Anonymous (not verified) on Thu, 10/26/2017 - 18:29 Ngram Count: 1Wordnet ID: 135105Starts with letter: YesIndefinite Article: aGoogle Ngram Count: 7016Sense count: 9Contained in other ngrams: 15Hierarchy: NounVerbForms: trepannedtrepanningtrepansForms Count: 3