The radius of a circle is the length of the line from the center to any point on its edge. Just curious. The plural of radius can be either radii (from the Latin plural) or the conventional English plural radiuses. How long will the footprints on the moon last? The plural of the word 'radius' is actually 'radii'. 1. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. (in sense (3)): from Latin, literally ‘staff, spoke, ray’. The noun antenna has a Latin root, which is the derivation of the plural antennae. A line segment that joins the center of a circle with any point on its circumference. In the figure above, drag the orange dot around and see that the radius is always constant at any point on the circle. In that sense you may see "draw a radius of the circle". The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. ‘B & Bs within a three-mile radius of the town were full.’ ‘The IT professionals usually look out for areas surrounding a radius of 9 km from City Railway Station.’ ‘To calculate a radius for each hospital's market area, we limited radii to a range between 10 and 35 miles.’ ‘The explosions could reach a radius … DrJokepu on June 5, 2009. 7 Common Grammar Mistakes That Can … es 1. The plural of radius is radii. Il raggio equivale alla metà del diametro. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. of ↑radius Remote Authentication Dial-In User Service (RADIUS) is a networking protocol, operating on ports 1812 and 1813, that provides centralized Authentication, Authorization, and Accounting (AAA or Triple A) management for users who connect and use a network service. In an otherwise hot and sparse environment, palm oases are a luxuriant gift of shade and solace. Give a rounded form to (a corner or edge). Using ‘Gustar’ in Spanish With More than One Subject. The correct usage for plural is radii. Continue reading to learn the plural of radius. 10 Common Sentence Mistakes in English. (line segment of circle) raggio nm sostantivo maschile: Identifica un essere, un oggetto o un concetto che assume genere maschile: medico, gatto, strumento, assegno, dolore : The radius is equal to half the diameter. With that being said, why do dictionaries have octopi listed as the plural form if that is incorrect? Find more words! an arm of a starfish. The noun oasis has a Greek root, which is the derivation of the plural oases. The radius (plural: radii) is one of the two long bones present in the forearm, located laterally in the supinated anatomic position. Because with [radi]us the stem is "radi" but with [vir]us the stem is "vir". The typical abbreviation and mathematical variable name for radius is r. By extension, the diameter d is defined as twice the radius: d ≐ 2. r ⇒ r = d. 2. r or rad. Which form would seem the most "normal" to you all: radii or radiuses? Radius definition, a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. {\displaystyle d\doteq 2r\quad \Rightarrow \quad r={\frac {d}{2}}.} Another word for Opposite of Meaning of Rhymes with Sentences with Find word forms Translate from English Translate to English Words With Friends Scrabble Crossword / Codeword Words starting with Words ending with Words containing exactly Words containing letters Pronounce Find conjugations Find names One: One radius. The Plural of Antenna The plural of antenna is antennas or antennae. answer! Sometimes the word 'radius' is used to refer to the line itself. What Is a Foreign Plural in English Grammar? That being said, I was the high scorer on the math team in high school and no one ever said "radii" to indicate the plural of radius. radius definition: 1. Mathematics a. There is no alternative English plural form. 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