: an abnormal desire to eat substances (such as chalk or ashes) not normally eaten

pica

2 of 2

noun (2)

1
: 12-point type
2
: a unit of about ⅙ inch used in measuring typographic material
3
: a type for typewriters providing 10 characters to the linear inch and six lines to the vertical inch

Examples of pica in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Having low iron can also cause restless leg syndrome and pica — cravings for nonfood items such as ice or clay. — Amanda Schupak, CNN Money, 23 Oct. 2026

Word History

Etymology

Noun (1)

New Latin, from Latin, magpie — more at pie

Noun (2)

probably from Medieval Latin, collection of church rules

First Known Use

Noun (1)

1563, in the meaning defined above

Noun (2)

1588, in the meaning defined at sense 1

Time Traveler
The first known use of pica was in 1563

Browse Nearby Words

Podcast

Cite this Entry

“Pica.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pica. Accessed 29 Oct. 2026.

Kids Definition

pica

noun
pi·​ca
ˈpī-kə
: a typewriter type providing 10 characters to the inch

Medical Definition

: an abnormal craving for and eating of substances (as chalk, ashes, or bones) not normally eaten that occurs in nutritional deficiency states (as aphosphorosis) in humans or animals or in some forms of mental illness compare geophagy

More from Merriam-Webster on pica

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster