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incandescent
mastery/ˌɪn.kænˈdɛs.ənt/adjnoun
card 1 of 10 · fill in the blank
We replaced all _____ lightbulbs with new energy-saving lightbulbs.
card 1 of 10 · fill in the blank
We replaced all _____ lightbulbs with new energy-saving lightbulbs.