actinic keratosis
C2CEFR level
93/100Rarity: very rare
TechnicalRegister
A rough, scaly premalignant lesion arising on chronically sun-damaged skin, with potential to progress to squamous cell carcinoma.
Multiple gritty actinic keratoses were palpable on the balding scalp of this outdoor worker.
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 actinic keratosis 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.