take (one's) temperature
To measure one's internal body temperature. You're forehead feels pretty warm to me; let me take your temperature and see if you're running a fever.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
take someone's temperature
to measure a person's body temperature with a thermometer. I took my temperature and I found that I am running a fever. The nurse took my temperature and said I was okay.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.