reacção
Portuguese, noun
reacção is spelled R-E-A-C-Ç-Ã-O (7 letters) and appears 5.9 times per million words in written Portuguese, the 10,843rd most frequent Portuguese word form (wordfreq, 2021 data). Reacção is a Portuguese feminine noun meaning “pre-reform spelling (used until 1943 in Brazil and 1990 in Portugal) of reação; still used where the agreement hasn’t come into effect and…” (English Wiktionary, September 2026). The Portuguese Wiktionary (Wikcionário) defines it as “vide reação”.
What does reacção mean in English?
noun
- 1
femininepre-reform spelling (used until 1943 in Brazil and 1990 in Portugal) of reação; still used where the agreement hasn’t come into effect and may occur as a sporadic misspelling
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
How Portuguese dictionaries define it
noun: 1. vide reação
The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.
Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of reacção
- reacções plural
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How common is reacção in Portuguese?
reacção appears 5.9 times per million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).