plasma cell

noun

Definition of plasma cell

: a lymphocyte that is a mature antibody-secreting B cell

Examples of plasma cell in a Sentence

Recent Examples on the Web An antibody is a protein made by plasma cells in response to infection and is a sign of the body's attempt to fight the virus. Fox News, "Most who recover from coronavirus carry antibodies, study finds," 8 May 2020 After a person is infected with a pathogen, plasma cells produce antibodies to fight it off, which can linger in blood long after the infection dies down. Tim Mcdonnell, Quartz, "If you’ve recovered from Covid-19, here’s one way you might be able to help others," 30 Mar. 2020 The video shows the sun's surface, which is made up of plasma cells that are each roughly the size of Texas. Jennifer Leman, Popular Mechanics, "This Is the Most Detailed Video of the Sun's Surface Ever Taken—and It's Incredible," 30 Jan. 2020 Eighty-five per cent of drug-resistant patients with multiple myeloma—a malignancy of the blood’s plasma cells—have either a complete or a partial response to the therapy, but more than a third of complete responders relapse within a year. Siddhartha Mukherjee, The New Yorker, "The Promise and Price of Cellular Therapies," 15 July 2019 The disease is cancer in plasma cells found in bone marrow, an important part of the immune system. Meredith Cohn, baltimoresun.com, "Baltimore biotech company raises $32.5 million to continue pursuing cancer immunotherapy treatment," 18 June 2018 When cancerous, these plasma cells produce abnormal proteins that damage organs. Karen Weintraub, STAT, "Once quickly lethal and still humbling, multiple myeloma may be in a ‘golden age’ of treatment," 29 May 2018 The cancer starts in a subgroup of white blood cells called plasma cells that normally make antibodies to fight infection. Karen Weintraub, STAT, "Once quickly lethal and still humbling, multiple myeloma may be in a ‘golden age’ of treatment," 29 May 2018 It’s made by plasma cells, the infection-fighting blood cells that turn malignant in multiple myeloma. Marie Mccullough, Philly.com, "Her identical twin saved her life 25 years ago. Now they're cancer activists," 17 Apr. 2018

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

See More

First Known Use of plasma cell

1895, in the meaning defined above

Keep scrolling for more

Learn More about plasma cell

Time Traveler for plasma cell

Time Traveler

The first known use of plasma cell was in 1895

See more words from the same year

Statistics for plasma cell

Cite this Entry

“Plasma cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plasma%20cell. Accessed 11 Aug. 2020.

Keep scrolling for more

More Definitions for plasma cell

plasma cell

noun

Medical Definition of plasma cell

: a lymphocyte that is a mature antibody-secreting B cell

More from Merriam-Webster on plasma cell

Britannica.com: Encyclopedia article about plasma cell

Comments on plasma cell

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

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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

TAKE THE QUIZ
Love words? Need even more definitions?

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