patent
C1CEFR level
70/100Rarity: rare
TechnicalRegister
Medicine adjective
Open and unobstructed, said of a vessel, duct or airway on imaging.
The vessel remained patent, with contrast flowing freely through it.
Law noun
An exclusive right granted for an invention that is new, involves an inventive step and is capable of industrial application.
The patent gives the pharmaceutical company a twenty-year monopoly on the drug.
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 patent 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.