Berylloid

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Berylloid (Crystallog) A solid consisting of a double twelve-sided pyramid; -- so called because the planes of this form occur on crystals of beryl.
    • ***
Century Dictionary and Cyclopedia
    • n berylloid A solid consisting of two twelve-sided pyramids placed base to base: so called because the planes of this form are common in crystals of beryl.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Beryl, + -oid,