Longman Dictionary of Contemporary English
Wiktionary
n. An alias, especially one adopted in order to deceive
WordNet
n. a name that has been assumed temporarily [syn: alias, false name]
Usage examples of "assumed name".
If my Mexican recruits in each resort get picked up by the police or questioned by suppliers who have turned against me, my recruits don't know the assumed name I'm using.
The great stumbling-block was the undeniable fact that Julius Hersheimmer was not an assumed name.
Ogareff's plan, therefore, is to go to Irkutsk, and, under an assumed name, offer his services to the Grand Duke.
When his assumed name had been repeated several times, Noah rubbed his eyes, and, giving a heavy yawn, looked sleepily about him.
Three months ago, therefore, I went out to meet him as a knight-errant, under the assumed name of the Knight of the Mirrors, intending to engage him in combat and overcome him without hurting him, making it the condition of our combat that the vanquished should be at the disposal of the victor.
Tommy appreciated her quick-wittedness in realizing that he might be staying at the inn under an assumed name.
If unwilling to attack Hamilton directly himself, or to write under an assumed name, he was not above urging others to do so.
Undoubtedly he had known at once that his intended victim had arrived the moment Rhodan had phoned him under the assumed name of Wilder.
That Smallfish was an assumed name, based upon the Sicilian Pisciotto.