di·late (d -l t , dlt )v. di·lat·ed, di·lat·ing, di·lates v.tr. To make wider or larger; cause to expand. v.intr. 1. To become wider or larger; expand. 2. To speak or write at great length on a subject; expatiate. [Middle English dilaten, from Old French dilater, from Latin d ltre, to enlarge : d-, dis-, apart; see dis- + ltus, wide.]di·lat a·bili·ty n.di·lat a·ble adj.di·lat a·bly adv.di·la tive adj. |
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