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Meaning of protofeather | Babel Free

Noun CEFR C1

Definitions

The hypothetical precursors of bird feathers, believed to have been grown by certain dinosaurs.

CEFR level

C1

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

See also

protofeminism protofeminist protofeudalism protofiber protofibril protofibrillization