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Meaning of mason worm | Babel Free

Noun CEFR B2

Definitions

Thelepus setosus (synonym: Thelepus spectabilis), a worm that builds a protective tube or case in the tidal zone to which fragments of shell and sand are attached.
A related worm, Pectinaria gouldii

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Mason-Dixon Line masoncraft masondom Masone Masoned Masoner