conchospiral

English

Noun

conchospiral (plural conchospirals)

1. A kind of spiral curve found in certain univalve shells.
   • 1842, The Philosophical Magazine:

     the constant angle according to which each traces its conchospiral.

References

• “concho-spiral”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.