sial
French, noun\sjal\
sial is spelled S-I-A-L (4 letters) and appears about once in every 11 million words in written French, the 110,748th most frequent French word form (wordfreq, 2021 data). Sial is a French masculine noun meaning “sial” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Croûte terrestre extérieure (de 10 à 20 kilomètres d’épaisseur), composée principalement de silice et…”.
What does sial mean in English?
noun
- 1
archaicmasculinesial
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Croûte terrestre extérieure (de 10 à 20 kilomètres d’épaisseur), composée principalement de silice et d’alumine (ou silicate d’aluminium).
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of sial
- siaux plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce sial?
- \sjal\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is sial in French?
sial appears about once in every 11 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).