pinacocyte
/ˈpɪnəkə(ʊ)sʌɪt/Zoology
noun
Each of the flattened cells which form the outermost cell layer in a sponge.
Origin
Late 19th century; earliest use found in William Sollas (1849–1936), geologist and anthropologist. From ancient Greek πινακ-, πίναξ pinax + -o- + -cyte.