noun, plural to·he·ro·as, to·he·ro·a.
- a large marine clam, Amphidesma ventricosum, of waters near New Zealand.
noun
- a bivalve mollusc, Amphidesma (or Semele) ventricosum, of New Zealand
- a greenish soup made of this
noun, plural to·he·ro·as, to·he·ro·a.
noun