Simple past tense and past participle of externalise.(verb)
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Use "externalised" in a sentence
""We have 'externalised' approximately 30% of GSK's discovery research."
"He managed to combine this with a burst of thought-provoking and entertaining imagination, bringing to life a Europe where the church is still in control, "souls" that have been externalised as animal presences, intelligent, sentient polar bears and much more."
"He managed to combine this with a burst of thought-provoking and entertaining imagination, bringing to life a Europe where the church is still in control, “souls” that have been externalised as animal presences, intelligent, sentient polar bears and much more."