added matter
C2CEFR level
88/100Rarity: very rare
TechnicalRegister
Content introduced into a patent by amendment that extends it beyond what was originally disclosed, rendering it vulnerable to attack.
The amendment was disallowed for added matter because the narrowed feature appeared nowhere in the original filing.
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 added matter 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.