hex-, hexa-

(Greek: six; a number used as a prefix)

hexacanth
Having ten spines.
hexactinal
hexactine
Sponge anatomy including a spicule with six equal and similar rays meeting at right angles.

Spicule is a small pointed structure serving as a skeletal element in various marine and freshwater invertebrates; such as, sponges and corals

hexacyclic
hexad
hexadactylia
A multiplicity of fingers, or toes, in which there are six digits on hands or feet.
hexadactylism
Polydactyly in which there are six digits on a hand or a foot.
hexadactyly
Having many fingers, or toes, usually with reference to a condition wherein there are six digits on a hand or a foot; or on both hands and feet.
hexadecimal
hexagon
hexahedral
hexahedron
hexameter
hexaphyllous
hexaploid