1
a
: the hardened exterior or surface part of bread
b
: a piece of this or of bread grown dry or hard
2
a
: the pastry shell of a pie : piecrust
b
: the bready layer that forms the foundation of a pizza
3
: a hard or brittle external coat or covering: such as
a
: a hard surface layer (as of soil or snow)
b
: the outer part of a planet, moon, or asteroid composed essentially of crystalline rocks
c
: a deposit built up on the interior surface of a wine bottle during long aging
d
: an encrusting deposit (as of the eye) of dried secretions or exudate
also
: scab
Synonyms
Examples of crust in a Sentence
Her children prefer to eat their sandwiches with the crust cut off.
a pie with flaky crust
He likes pizza with thin crust.
Recent Examples on the Web
The pie crust is perfectly golden brown and flaky, adding a nice texture to the smooth custard.
—
Amanda Holstein, Southern Living, 5 Nov. 2024
These can eventually burst or leak fluid and form crusts.
—Mark Gurarie, Verywell Health, 30 Oct. 2024
These samples revealed that, like Earth, the Moon has a layered structure consisting of a crust, mantle, and core.
—Anna Nordseth, Discover Magazine, 29 Oct. 2024
Note that this is a thick crust, so feel free to divide the dough in half to make two crusts (freeze one for later).
—Robin Miller, The Arizona Republic, 24 Oct. 2024
See all Example Sentences for crust 
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Amanda Holstein, Southern Living, 5 Nov. 2024
These can eventually burst or leak fluid and form crusts.
—Mark Gurarie, Verywell Health, 30 Oct. 2024
These samples revealed that, like Earth, the Moon has a layered structure consisting of a crust, mantle, and core.
—Anna Nordseth, Discover Magazine, 29 Oct. 2024
Note that this is a thick crust, so feel free to divide the dough in half to make two crusts (freeze one for later).
—Robin Miller, The Arizona Republic, 24 Oct. 2024
See all Example Sentences for crust
Dictionary Entries Near crust
Cite this Entry
“Crust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crust. Accessed 22 Nov. 2024.
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Medical Definition
crust
noun1
2
: an encrusting deposit of serum, cellular debris, and bacteria present over or about lesions in some skin diseases (as impetigo or eczema)
crust
verb
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