evergreenとは

発音

• (英国発音) IPA^(key): /ˈɛvəɡɹiːn/
• (米国発音) enPR: ěvʹərgrēn, IPA^(key): /ˈɛvɚɡɹin/

形容詞

evergreen (not comparable)

1. Of plants, especially trees, that do not shed their leaves seasonally.
   • 1902: Henry Van Dyke, The Blue Flower [1]

     ...these three little creeping vines put forth their hands with joy, and spread over rock and hillock and twisted tree-root and mouldering log, in cloaks and scarves and wreaths of tiny evergreen, glossy leaves.

2. Continually fresh or self-renewing; often used metaphorically.
   1. (contracts) A clause which causes an automatic renewal of a contract unless action is taken.
   2. (computing) Of a document, a piece of software, or a dataset, being continually up-to-date (as opposed to being published at regular intervals かつ outdated in the meantime)
      • 2014, Peter Gasston, Book of CSS3, 2nd Edition: A Developer's Guide to the Future of Web Design, No Starch Press →ISBN, page 257

        Chrome and Firefox are evergreen browsers: they update automatically and version numbers are only used for internal reference.

3. (broadcasting) Suitable for transmission at any time; not urgent or time-dependent.
   • 2001, Christopher H Sterling, John M Kittross, Stay Tuned (Lawrence Erlbaum Associates 2001, p. 654)

     Another change in the news was emphasis on “evergreen” features involving attractive children or animals, parades or fireworks, as well as local developments.

反意語

• (of plants, that do not shed their leaves): deciduous

派生語

• evergreenness
• evergreen oak
• half-evergreen
• semi-evergreen, semievergreen

名詞

evergreen (複数形 evergreens)

1. A tree or shrub that does not shed its leaves or needles seasonally.
   • 1838, [Edward Bulwer-Lytton], chapter I, in Alice or The Mysteries: […] In Three Volumes, volume I, London: Saunders and Otley, […], OCLC 2844716, book I, page 3:

     The lawn before them was gay with evergreens, relieved by the first few flowers and fresh turf of the reviving Spring; […]

2. (informal, specifically) A conifer tree.
   • 1858: Henry David Thoreau, The Maine Woods [2]

     The spruce and fir trees crowded to the track on each side to welcome us, the arbor- vitae, with its changing leaves, prompted us to make haste, and the sight of the canoe-birch gave us spirits to do so. Sometimes an evergreen just fallen lay across the track with its rich burden of cones, looking, still, fuller of life than our trees in the most favorable positions.

   • 1958: Chuck Berry, Johnny B. Goode

     Deep down in Louisiana, close to New Orleans,

     Way back up in the woods among the evergreens,

     There stood a log cabin made of earth and wood

     Where lived a country boy named Johnny B. Goode

3. (colloquial) A news story that can be published or broadcast at any time.

派生語

• Chinese evergreen

動詞

evergreen (三人称単数 現在形 evergreens, 現在分詞 evergreening, 過去形および過去分詞形 evergreened)

1. (patent law, pharmaceuticals) To extend the term of a patent beyond the normal legal limit, usually through repeated small modifications.
2. (banking) To set the repayment rate of a loan at or below the interest rate, so low that the principal will never be repaid.

参考

• evergreening on Wikipedia.