deleterious. adjective (Formal) harmful, bad, damaging, destructive, detrimental, hurtful, pernicious, ruinous, prejudicial, injurious Fear of crime is having a deleterious effect on society. adjective.
In 1987, the south bank of the canal became part of the National Ice Age Trail. Maps and more information are available at the Portage Area Chamber of Commerce, Located at the corner of Wisconsin and Cook Streets, Downtown Portage.
Agitation for a canal system (1787â1822) As early as 1787, George Washington and Thomas Jefferson had discussed the desirability of a canal linking Lake Erie to the Ohio River as part of a national system of canals.