radián
Spanish, noun
radián is a Spanish masculine noun meaning “radian” (English Wiktionary, September 2026). Without its accent, radian is a different word: “third-person plural present indicative of radiar”. The Spanish Wiktionary (Wikcionario) defines it as “Es la unidad de ángulo plano en el Sistema Internacional de Unidades; su símbolo es rad y, sobre una…”.
What does radián mean in English?
noun
- 1
masculineradian
verb
- 1
third-person plural present indicative of radiar
Source: English Wiktionary, Spanish section, dump of September 2, 2026 (CC BY-SA 4.0).
How Spanish dictionaries define it
noun: 1. Es la unidad de ángulo plano en el Sistema Internacional de Unidades; su símbolo es rad y, sobre una circunferencia, es equivalente al ángulo cuyo arco tiene igual longitud que el radio. Una circunferencia completa mide 2π rad (360°) por lo que un ángulo recto mide π/2 radianes (90°).
The definition in the Spanish Wiktionary (Wikcionario), in Spanish.
Source: Spanish Wiktionary (Wikcionario), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of radián
- radianes plural
Source: English Wiktionary and Spanish Wiktionary (Wikcionario) (dumps of September 2, 2026 and September 1, 2026).
English words that translate to radián
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is radián in Spanish?
radián appears about once in every 21 million words in written Spanish.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).