aracnoide
Portuguese, noun
aracnoide is spelled A-R-A-C-N-O-I-D-E (9 letters) and appears about once in every 41 million words in written Portuguese, the 181,777th most frequent Portuguese word form (wordfreq, 2021 data). Aracnoide is a Portuguese feminine noun meaning “arachnoid mater (middle layer of the meninges)” (English Wiktionary, September 2026). With an accent, aracnóide is a different word: “pre-reform spelling (used until 1990) of aracnoide; still used where…”. The Portuguese Wiktionary (Wikcionário) defines it as “fina membrana que separa a dura-máter e a pia-máter”.
What does aracnoide mean in English?
adjective
- 1
femininemasculinearachnoidal (pertaining to the arachnoid mater)
noun
- 1
femininearachnoid mater (middle layer of the meninges)
adjective
- 1
femininemasculinepre-reform spelling (used until 1990) of aracnoide; still used where the agreement hasn’t come into effect and may occur as a sporadic misspelling
noun
- 1
femininepre-reform spelling (used until 1990) of aracnoide; 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. fina membrana que separa a dura-máter e a pia-máter
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 aracnoide
- aracnoides plural
- aracnóide alternative
- aracnóides plural
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How common is aracnoide in Portuguese?
aracnoide appears about once in every 41 million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).