Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vermĭcŭlātus, a, um, P. a. of vermiculor.
vermĭcŭlor, ātus, 1, v. dep. n. [vermiculus], to be full of worms, wormy, to be worm-eaten, of trees: vermiculantur magis minusve quaedam arbores, Plin. 17, 24, 37, § 220.
Hence, vermĭcŭlātus, a, um, P. a., in the form of worms: gummi, Plin. 13, 21, 20, § 66.
Esp., of mosaic work, inlaid so as to resemble the tracks of worms, vermiculated: pavimento atque emblemate vermiculato, Lucil. ap. Cic. Or. 44, 149: crustae, Plin. 35, 1, 1, § 2.
Of a quick movement of the finger, Mart. Cap. 7, § 729.
Adv.: vermĭcŭlātē, in a vermiculated manner: tesserulas, ut ait Lucilius, struet, et vermiculate inter se lexeis committet, Quint. 9, 4, 113.