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periostracum

per·i·os·tra·cum
P p

Transcription

    • US Pronunciation
    • US IPA
    • [per-ee-os-truh-kuh m]
    • /ˌpɛr iˈɒs trə kəm/
    • US Pronunciation
    • US IPA
    • [per-ee-os-truh-kuh m]
    • /ˌpɛr iˈɒs trə kəm/

Definitions of periostracum word

  • noun plural periostracum the external, chitinlike covering of the shell of certain mollusks that protects the limy portion from acids. 1
  • noun periostracum the thin outer organic covering of a mollusc shell 0
  • noun periostracum a horny covering, secreted as the outermost layer of most mollusk shells, that protects the underlying shell from erosion 0
See all 3 definitions of periostracum

Information block about the term

Origin of periostracum

First appearance:

before 1830
One of the 36% newest English words
1830-40; < New Latin, equivalent to peri- peri- + ostracum a shell < Greek óstrakon. See oyster

Historical Comparancy

Parts of speech for Periostracum

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Periostracum

periostracum popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 53% of English native speakers know the meaning and use word.
This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

periostracum usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

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