P0029700 (pä′mər-wûrm′)n. Any of several caterpillars that feed on the leaves of fruit trees, such as the small green caterpillar of the North American moth Dichomeris ligulella.[From palmer (the caterpillars perhaps being so called because they were thought to move about constantly like palmers on pilgrimage).]
palm•er•worm
(ˈpɑ mərˌwɜrm)
n. the larva of a moth, Dichomeris ligulella, of the eastern U.S., that feeds on the leaves of fruit trees. [1550–60]