American Heritage Dictionary
(4)
Century Dictionary
(7)
GNU Webster's 1913
(4)
WordNet
(2)
Elsewhere on the web
The different textile manufacturers at length found that competition was so keen that it was necessary to adulterate, particularly any fabric that was popular.— Textiles For Commercial, Industrial, and Domestic Arts Schools; Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades
Apparently the playhouses in general had been allowed to resume performances; and since by December 24 there had been no deaths from the plague for a week, the special inhibition of the Cockpit Playhouse was soon lifted And in the following year, 1630, Thomas Carew in verses prefixed to Davenport's Just Italian_, attacks the Red Bull and the Cockpit as "adulterate" stages where "noise prevails," and "not a tongue of th' untun'd kennel can a line repeat of serious sense."— Shakespearean Playhouses A History of English Theatres from the Beginnings to the Restoration
'[225] 'Tis only things false and adulterate which shun the light and fear the touchstone.'— The English Church in the Eighteenth Century
"Oh, but ten pounds is nothing in your way, you know, Jorrocks--adulterate a chest of tea.— Jorrocks' Jaunts and Jollities
There are tradesmen who adulterate, contractors who "scamp," manufacturers who give us shoddy instead of wool, "dressing" instead of cotton, cast-iron tools instead of steel, needles without eyes, razors made only "to sell," and swindled fabrics in many shapes.— Self help; with illustrations of conduct and perseverance

American Heritage Dictionary (1)
Century Dictionary (2)
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