at a time

[adv] - simultaneously
Found on http://www.webdictionary.co.uk/definition.php?query=at%20a%20time

at a time

at once 3 at one time adverb simultaneously; `he took three cookies at a time`
Found on http://wordnetweb.princeton.edu/perl/webwn?s=at%20a%20time
No exact match found