英和和英

名詞

dieback (countable and uncountable, plural diebacks)

1. (phytopathology) The browning and death of a plant shoot starting at the tip, due to either disease or climate conditions.
   • 2021 December 12, “The Guardian view on ash dieback: a tiny chink of hope”, in The Guardian‎:

     The National Trust reports that 30,000 ash trees on its land will have been felled this year owing to ash dieback. “Dieback” sounds like a gentle, seasonal withdrawal. In fact, ash dieback is a devastating disease caused by a fungus, Hymenoscyphus fraxineus, likely to have been carried into the UK on imported ash saplings in the early part of this century.

2. (botany) The withering of a plant, especially the cyclical withering in autumn and winter; distal parts die off but core parts stay alive (and semidormant or dormant).

派生語

• ash dieback
• citrus dieback

関連する語

• die back (verb)

動詞

die back (third-person singular simple present dies back, present participle dying back, simple past and past participle died back)

1. (botany, of a plant) To wither, particularly during the winter.
   • 1980, AA Book of British Villages, Drive Publications Ltd, page 240:

     The same walls, when the Virginia creeper dies back in winter, show a date-mark of 1490.

   • 2023 May 3, 'Industry Insider', “Funds for railway's upkeep”, in RAIL, number 982, page 84:

     The changing weather pattern, and in particular warmer winters, has also affected the inspection of earthworks. Lineside vegetation is not dying back as previously and has to be cleared before any inspections can take place.

派生語

• dieback (noun)

関連する語