allergic reaction
B1CEFR level
25/100Rarity: fairly common
TechnicalRegister
An abnormal immune response to a drug, ranging from a rash to life-threatening anaphylaxis.
She developed an allergic reaction to penicillin with facial swelling and a widespread rash.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
Get words like allergic reaction on your lock screen, a few a day, with review that makes them stick.
Download on the App Store Lexfall puts a new word on your home and lock screen through widgets, so you learn without opening an app. Free to download. After a free trial, a subscription unlocks every field. Built for iPhone, iOS 15.1 or later.
On a computer?Scan with your iPhone camera.