chitinoid,a.|ˈkaɪtɪnɔɪd| [f. chitin + -oid.] Resembling chitin. 1888Rolleston & Jackson Anim. Life 429 The egg-shell in oviparous Elasmobranchii is chitinoid.1957New Biol. XXIV. 22 After a time this pseudopodial fan shortens again. A chitinoid membrane forms at its periphery.