perimeter
perimeter Lexical Profile
perimeter Game Scores & Validity
• noun
The continuous line forming the boundary of a closed geometric figure, or the total length of this boundary.
"The students calculated the perimeter of the rectangle by adding the lengths of all four sides."
The outer limits or boundary of an enclosed area, property, or surface.
"Tall oak trees were planted along the entire perimeter of the botanical garden."
An optical instrument used in ophthalmology to measure the extent and sensitivity of a patient's visual field.
"The optometrist used an automated perimeter to check the patient for signs of peripheral vision loss."
Word Nuance & Usage
Do not confuse 'perimeter' (a physical boundary or outer edge) with 'parameter' (a measurable factor, limit, or variable that defines a system).
• Rhymes for perimeter
• Nearby Words
Word Origin & Etymology
Borrowed in the late 16th century via French and Latin from Ancient Greek 'perimetros', combining 'peri-' (around) and 'metron' (measure).