ˈsquilloid,a.andn.Zool. [f. squilla 3 + -oid.] a.adj. Resembling the Squilla or mantis-shrimp. b.n. A shrimp resembling the Squilla. 1852Dana Crust i. 613 In the Squilloids, the ophthalmic and two antennary segments are distinctly marked.Ibid. 614 There is only a single type, the Squilloid, divisible.