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Meaning of proto-calcium | Babel Free

Noun CEFR C1

Definitions

The proto-metal form of calcium.

obsolete, uncountable

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

Proto-Canaanite Proto-Canaanite alphabet Proto-Celtic Proto-Central Algonquian Proto-Central Malayo-Polynesian Proto-Central-Eastern Malayo-Polynesian