masculine
Uppāṭaka [from ud + paṭ in meaning of "biting, stinging"] an insect, vermin S I 170 (santhāro °ehi sañchanno "a siesta-couch covered by vermin swarm" translation page 215 and note).
an insect
(masc, masc, agent, from uppāṭeti) biting insect insect [lit.] causing to split up Construction: ud + √paṭ > pāṭ + *aka