nu·​cle·​o·​cap·​sid | \ ˌnü-klē-ō-ˈkap-səd How to pronounce nucleocapsid (audio) , ˌnyü- \

Definition of nucleocapsid

: the nucleic acid and surrounding protein coat in a virus

Examples of nucleocapsid in a Sentence

Recent Examples on the Web At the center of each virus is its genetic fingerprint (the ribonucleic acid, pink), surrounded by a protective protein shell (the nucleocapsid, yellow). Doug Criss, CNN, "5 things for March 28: North Korea & China, Sacramento, water park death, new organ," 28 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nucleocapsid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of nucleocapsid

1962, in the meaning defined above

Keep scrolling for more

Learn More about nucleocapsid

Time Traveler for nucleocapsid

Time Traveler

The first known use of nucleocapsid was in 1962

See more words from the same year

Statistics for nucleocapsid

Cite this Entry

“Nucleocapsid.” Dictionary, Merriam-Webster, Accessed 18 Feb. 2020.

Keep scrolling for more

More Definitions for nucleocapsid


nu·​cleo·​cap·​sid | \ ˌn(y)ü-klē-ō-ˈkap-səd How to pronounce nucleocapsid (audio) \

Medical Definition of nucleocapsid

: the nucleic acid and surrounding protein coat of a virus

More from Merriam-Webster on nucleocapsid Encyclopedia article about nucleocapsid

Comments on nucleocapsid

What made you want to look up nucleocapsid? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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