cockroach
noun
cock·roach
ˈkäk-ˌrōch 
: any of an order or suborder (Blattodea synonym Blattaria) of chiefly nocturnal insects including some that are domestic pests compare german cockroach
Examples of cockroach in a Sentence
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The leaves are also a home for pests (including cockroaches) and create the perfect environment for lawn fungus to thrive.
—
Mary Marlowe Leverette, Southern Living, 29 Dec. 2025
The 200-unit building for seniors and people with disabilities has seen bedbug and cockroach infestations.
—Sam Tabachnik, Denver Post, 11 Dec. 2025
Sacramento County health inspectors closed a local Mexican restaurant and Asian supermarket after discovering leaky toilets, dozens of cockroaches and other food safety violations.
—Sacbee.com, 5 Dec. 2025
Rats, cockroaches and piles of trash are frequent sights for some neighbors living near Pulaski Park on South 15th Place on Milwaukee’s south side.
—Alyssa N. Salcedo, jsonline.com, 1 Dec. 2025
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Mary Marlowe Leverette, Southern Living, 29 Dec. 2025
The 200-unit building for seniors and people with disabilities has seen bedbug and cockroach infestations.
—Sam Tabachnik, Denver Post, 11 Dec. 2025
Sacramento County health inspectors closed a local Mexican restaurant and Asian supermarket after discovering leaky toilets, dozens of cockroaches and other food safety violations.
—Sacbee.com, 5 Dec. 2025
Rats, cockroaches and piles of trash are frequent sights for some neighbors living near Pulaski Park on South 15th Place on Milwaukee’s south side.
—Alyssa N. Salcedo, jsonline.com, 1 Dec. 2025
See All Example Sentences for cockroach
Cite this Entry
“Cockroach.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cockroach. Accessed 31 Dec. 2025.
Copy CitationKids Definition
cockroach
noun
cock·roach
-ˌrōch
: any of an order of quick-moving insects that have long antennae and leathery forewings, are mainly nocturnal, and include pests of human dwellings
Medical Definition
cockroach
noun
cock·roach
ˈkäk-ˌrōch
: any of an order or suborder (Blattodea synonym Blattaria) of chiefly nocturnal insects including some that are domestic pests see blatta, blattella, periplaneta
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