auro
auro — combining form
1. A prefix added to nouns and adjectives to show a connection with the metal gold,
A prefix added to nouns and adjectives to show a connection with the metal gold, used mainly in scientific and technical vocabulary.
Dr. Okafor showed the class an 'auriferous' rock from a gold mine in South Africa.
prefix + adjective (auriferous = gold-bearing)
Dr. Mei-Lin identified auriferous minerals in the mountain rock samples her team collected.
auriferous = gold-bearing
Dr. Nakamura's 1920s notes described aurotherapy for eight rheumatoid arthritis patients in Tokyo.
Priya read in geology class that auricalcite is a mineral with both gold and calcium.
In 16th-century Prague, alchemists used auro- names for gold-like powders to mark them as valuable.
文法句型
auro- + adjective/noun
用法筆記
Auro- is a bound prefix — it never appears as a standalone word in English. The ordinary noun for the metal is 'gold'.
常見錯誤
2. A prefix used in chemical naming to indicate a compound that contains gold toget
A prefix used in chemical naming to indicate a compound that contains gold together with a second element, for example aurocyanide (gold and cyanide).
Nikhil learned in chemistry class that aurocyanide helps extract gold from crushed ore.
chemical compound: aurocyanide
A lab bottle carried a label reading 'aurocyanide' — a substance containing gold with cyanide.
Under the microscope, Megan saw that gold atoms gave aurohalide crystals a pale yellow colour.
Dr. Patel described auroargentate as a gold-silver compound that formed in a beaker overnight.
文法句型
auro- + element stem + -ide
用法筆記
In chemical compound names, the second element is indicated by the part after auro-, and the suffix -ide is added (e.g., aurocyanide, aurohalide).