noun, plural: cnidoblasts
A developing cell containing a cnidocyst
Cnibolasts are cells that develop into mature, specialized cells called cnidocytes. Cnidocytes are cells of cnidarians (jellyfishes, sea anemones, corals, hydrae, etc.) that shoot off threadlike, often toxic, tubule to capture prey and to ward off enemies.
Word origin: Latin cnīdē (nettle) + Greek blastos (bud)