rodent

noun

ro·​dent ˈrō-dᵊnt 

1

: any of an order (Rodentia) of relatively small gnawing mammals (such as a mouse, squirrel, or beaver) that have in both jaws a single pair of incisors with a chisel-shaped edge

2

: a small mammal (such as a rabbit or a shrew) other than a true rodent

rodent adjective

Examples of rodent in a Sentence

Recent Examples on the Web

The study on the effectiveness of DHM as a treatment for alcohol use was done on rodents. — Austin Elias-De Jesus, New Yorker, 27 Aug. 2026

Several open rodent bait stations were seen underneath shelving and equipment throughout the kitchen and dry storage rooms. — Rashad Alexander, Kansas City Star, 25 Aug. 2026

Roaches, rodent droppings and food stored at unsafe temperatures were found at Tarrant County food establishments during the latest round of health inspections, according to the inspection report. — Shambhavi Rimal, Fort Worth Star-Telegram, 24 Aug. 2026

Mayor Karen Bass had imposed a 45-day deadline for Lineage to clean everything up as neighbors complained of rotting smells, rodents and flies. — Julie Sharp, CBS News, 21 Aug. 2026

Word History

Etymology

borrowed from the base of New Latin Rodentia, order name, from neuter plural of Latin rōdent-, rōdens, present participle of rōdere "to gnaw, nibble, eat away," perhaps going back to Indo-European *Hr̥h₃d-, *Hreh₃d-, whence also Hittite ardu- "saw (off)," Sanskrit rádati "(s/he) bites, gnaws, cuts, opens"

First Known Use

1830, in the meaning defined at sense 1

Phrases Containing rodent

• rodent ulcer

Kids Definition

rodent

noun

ro·​dent ˈrōd-ᵊnt 

: any of an order of fairly small mammals (as mice, squirrels, or beavers) that have sharp front teeth used for gnawing

rodent adjective

Etymology

derived from Latin rodent-, rodens, a form of rodere "to gnaw" — related to erode

Medical Definition

rodent

noun

ro·​dent ˈrōd-ᵊnt 

: any mammal (as a mouse or rat) of the order Rodentia

rodent adjective