slow-reacting substance of anaphylaxis

noun

: a mixture of three leukotrienes produced in anaphylaxis that causes contraction of smooth muscle after minutes in contrast to histamine which acts in seconds and that is probably responsible for the bronchoconstriction occurring in anaphylaxis
abbreviation SRS-A

Dictionary Entries Near slow-reacting substance of anaphylaxis

slow-reacting substance

slow-reacting substance of anaphylaxis

slow-release

Cite this Entry

“Slow-reacting substance of anaphylaxis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/slow-reacting%20substance%20of%20anaphylaxis. Accessed 21 Mar. 2023.

Love words? Need even more definitions?

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


Challenging Standardized Test Words

  • high school student holding a pencil leaning over a sat test
  • Despite the cacophony, the student tried to study.
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY