| 单词 | purpletop |
| 释义 | purpletop1 of 2noun (1) variants or less commonly purpletop grass : a sticky grass (Triodia flava) of the eastern U.S. with purple panicles purple-top 2 of 2noun (2) variants or less commonly purple-top wilt : an insect-transmitted and often fatal disease of potato plants caused by the same virus that produces aster yellows and characterized by a purplish or chlorotic discoloration of the top shoots, swelling of axillary branches, and severe wilting |
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