Online Google Dictionary

ephemeral 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/əˈfem(ə)rəl/,
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Lasting for a very short time,
  1. Lasting for a very short time
    • - fashions are ephemeral
  2. (chiefly of plants) Having a very short life cycle

Noun
  1. An ephemeral plant

  1. ephemeron: anything short-lived, as an insect that lives only for a day in its winged form
  2. lasting a very short time; "the ephemeral joys of childhood"; "a passing fancy"; "youth's transient beauty"; "love is transitory but it is eternal"; "fugacious blossoms"
  3. (ephemeralness) ephemerality: the property of lasting for a very short time
  4. Ephemeral things (from Greek εφήμερος - ephemeros, literally "lasting only one day") are transitory, existing only briefly. Typically the term is used to describe objects found in nature, although it can describe a wide range of things.
  5. Ephemeral is the 2009 follow-up to the PLCN/TAAS split EP by American post-metal band Pelican. It is their first album to be released since signing to Southern Lord Records. ...
  6. Something which lasts for a short period of time; Lasting for a short period of time; Existing for only one day, as with some flowers, insects, and diseases
  7. (Ephemerals) mosses lasting only a few weeks; just enough time when conditions are right for a spore to grow into a tiny plant with capsule and produce new spores for the next generation.
  8. (ephemerals) nbsp &nbsp &nbsp Plants that emerge and bloom during one season, then die back for the remainder of the year. Many spring ephemerals bloom in woodlands, including trillium and ladyslipper.
  9. One that flows only in direct response to precipitation, and whose channel is at all times above the water table.
  10. Transitory or short-lived (e.g. the mayfly is an ephemeral organism)
  11. in rivers, flowing seasonally or occasionally in response to increased water availability e.g. due to a rainfall event or snowmelt. Compare with intermittent.
  12. an annual plant with an extremely short lifespan measured in a few weeks or very few months; characteristic growthform of desert forbs.
  13. Lasting a short time. 1. Pertaining to individual plants, completing the life cycle (germination through death) or growth cycle in much less than one year. 2. Pertaining to plant parts, falling early or remaining functional for a relatively short time (e.g., less than a day for flower parts).
  14. (adj.) short-lived, fleeting (She promised she’d love me forever, but her “forever” was only ephemeral: she left me after one week.)
  15. refers to anything lasting for a short period: Truth can be an ephemeral thing; A creek can be ephemeral if it disappears in the middle of summer.
  16. Short-lived; existing or continuing for a short time only. Many small upland streams in the HBEF are ephemeral, flowing only after snowmelt or particularly heavy storm events.
  17. seasonal organisms that usually die back in winter.
  18. (Bot.) A plant that germinates, reproduces and dies over a very short period, usually within a few weeks to several months; pertaining to such plants.
  19. existing only briefly; in ecology, it refers to bodies of water that exist only a short period, such as after rainfall or during snowmelt.
  20. an alga that completes its life cycle in a short time
  21. Applies to bodies of water that dry up from time to time.
  22. lasting a short time, being present very briefly; as in ephemeral creek (one which dries up for part of the year) and Ephemeroptera (the Mayfly Order of short-lived aquatic insects).
  23. (ee-FEM-er-al) -- Of very short duration, said of flowers open for only one day as Dendrobium crumenatum.
  24. Vanishing or short-lasting; literally "a day long."
  25. used in describing H.248 terminations representing RTP flow i.e. ephemeral or created per call.