re·ac·to·gen·ic | \ (ˌ)rē-ˌak-tə-ˈjen-ik 
\
\Medical Definition of reactogenic
: capable of causing a reaction and especially an immunological reaction
a highly reactogenic vaccine
Other Words from reactogenic
reactogenicity \ -jə-ˈnis-ə-tē \ noun, plural reactogenicities
\ noun, plural reactogenicitiesComments on reactogenic
What made you want to look up reactogenic? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Farm Idioms Quiz
- What does 'poke' refer to in the expression 'pig in a poke'?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share reactogenic