I. noun
Etymology: translation of New Latin macula lutea
: macula lutea
II. noun
Etymology: yellow (I) + spot
1. : a small American skipper ( Polites peckius ) of the family Hesperiidae having brownish wings with a large irregular bright-yellow spot on each of the hind wings that is most conspicuous beneath
2. : tomato hornworm
3. : any of several plant diseases characterized by yellow spotting on the foliage: as
a. : tomato streak
b. : a sugarcane disease that is serious in Australia and is caused by a fungus ( Cercospora kopkei )
c. : a disease of wheat caused by a fungus ( Helminthosporium tritici-vulgaris )
d. : a virus disease of pineapple