simulator

noun

sim·​u·​la·​tor ˈsim-yə-ˌlā-tər 

: one that simulates

especially : a device that enables the operator to reproduce or represent under test conditions phenomena likely to occur in actual performance

Examples of simulator in a Sentence

a flight simulator used by pilots

Recent Examples on the Web

Originally supposed to fly Sierra Space Dream Chaser test flight, but payload switched to an inert mass simulator because of potential Dream Chaser delays beyond October launch date. —Richard Tribou, The Orlando Sentinel, 14 Mar. 2026

The new simulator reproduces galactic cosmic rays using ion accelerators, giving researchers a powerful tool to study radiation exposure in deep space. —Aamir Khollam, Interesting Engineering, 13 Mar. 2026

According to surveys at workshops in which Surgical Science’s simulator was used, 92 percent of clinicians reported improved understanding of endometriosis diagnosis. —Tanya Lewis, Scientific American, 12 Mar. 2026

Amenities at the site include a 12th-floor sky lobby, golf simulator, four terraces as well as a coffee and cocktail bar. —Nick Wooten, Dallas Morning News, 11 Mar. 2026

Word History

Etymology

simulate + -or entry 1

First Known Use

1835, in the meaning defined above

Rhymes for simulator

• activator
• actuator
• agitator
• alligator
• allocator
• alternator
• animator
• annotator
• applicator
• arbitrator
• aspirator
• aviator

Kids Definition

simulator

noun

sim·​u·​la·​tor ˈsim-yə-ˌlāt-ər 

: one that simulates

especially : a device that enables the operator to experience under test conditions events similar to those likely to occur in a real situation

Medical Definition

simulator

noun

sim·​u·​la·​tor ˈsim-yə-ˌlāt-ər 

: a device that enables the operator to reproduce or represent under test conditions phenomena likely to occur in actual performance

a driving simulator used to study behavior in highway emergencies