Langimage
English

argilloferruginous

|ar-gil-lo-ferru-gi-nous|

C2

🇺🇸

/ˌɑrdʒɪloʊfɛˈrʌdʒɪnəs/

🇬🇧

/ˌɑːdʒɪləʊfɛˈrʌdʒɪnəs/

clay + iron-rich

Etymology
Etymology Information

'argilloferruginous' originates from New Latin/Modern Latin, specifically combining 'argilla' (Latin) and 'ferruginosus' (Latin), where 'argilla' meant 'clay' and 'ferruginosus' meant 'rusty' or 'containing iron'.

Historical Evolution

'argilloferruginous' changed from the New Latin compound 'argillo-ferruginosus' (used in technical geological/chemical Latin) and was adopted into English as the technical adjective 'argilloferruginous' to describe clay-and-iron-bearing materials.

Meaning Changes

Initially it meant 'containing clay and iron (rust)'; over time it has remained a specialised geological term describing rocks or sediments rich in clay and iron.

Meanings by Part of Speech

Adjective 1

containing or composed of both clay (argillaceous) and iron (ferruginous); clay- and iron-rich, used especially of rocks or sediments.

The outcrop was argilloferruginous, suggesting deposition in a clay-rich environment followed by iron oxidation.

Synonyms

clayey and iron-richargillaceous-ferruginousclay-rich, iron-bearing

Antonyms

siliceouscalcareousnon-ferruginous

Last updated: 2025/10/12 09:06