Also called lab·o·ra·to·ry rat [lab-ruh-tawr-ee rat, lab-er-uh-] /ˈlæb rəˌtɔr i ˌræt, ˈlæb ər ə-/ . a rat, typically the Norway rat, used by scientists for biological research.
Informal. a laboratory researcher, often a graduate student, whose dedication to the research supplants other interests and activities, including personal relationships: The loneliest guy in the room is the one who’s in love with a lab rat.
Informal. the subject of any sort of experiment: Not all the human lab rats in this study fully understood the potential consequences.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use lab rat in a sentence
Dolphins and lab rats and women undergo a common internal renaissance, a dramatic overhaul of motive, with babies suddenly trumping food and sex as our raison d’etre.How My Research Into the Biology of Mothers Helps Me Imagine a Post-Pandemic Future | Abigail Tucker | May 4, 2021 | Time
Experiments with lab rats and monkeys show how chronically stressing out a new mother can stunt her maternal brain and disrupt her and her offspring’s behavior.How My Research Into the Biology of Mothers Helps Me Imagine a Post-Pandemic Future | Abigail Tucker | May 4, 2021 | Time
I minded that you were talking to her yesterday in the lab'rat'ry, before the telegram came about Mr. George.Dr. Jonathan (A Play) | Winston Churchill