ad hocとは 意味・読み方・使い方

別の表記

• ad-hoc

語源

Learned borrowing from New Latin ad hoc (“to this, for this”).

発音

• (Received Pronunciation) IPA: /ˌæd ˈhɒk/
• (General American) IPA: /ˌæd ˈhɑk/, /ˌæd ˈhɔk/
• 韻: -ɒk

形容詞

ad hoc (comparative more ad hoc, superlative most ad hoc)

1. For a particular purpose.
2. Created on the spur of the moment; impromptu.
   • 2020 February 25, Christopher de Bellaigue, “The end of farming?”, in The Guardian‎:

     Over the past 20 years or so, from South America to the Danube basin, ad hoc coalitions of politicians, activists and conscience-stricken billionaires (whose core activities, such as Povlsen’s clothing business, are often less than environmentally friendly), have rewilded millions of acres of mostly failed agricultural and grazing land.

3. (sciences, of a hypothesis) Postulated solely to save a theory from being falsified, without making any new predictions.
   • 2012 December 6, J. Agassi, Science in Flux, Springer Science & Business Media, →ISBN, page 197:

     Contrary to the traditional condoning of ad hoc hypotheses, and in line with Popper's and Grünbaum's approaches, we see, once an ad hoc hypothesis is introduced we are unhappy about it and try to eliminate it.

4. (networking) Independent of previously instated network structure, like routers or access points.
   • 2007 April 23, Jagannathan Sarangapani, Wireless Ad hoc and Sensor Networks: Protocols, Performance, and Control, CRC Press, →ISBN, page 233:

     An ad hoc network is a group of wireless mobile nodes dynamically forming a temporary network without any fixed infrastructure or centralized administration. The applications for ad hoc networks have grown tremendously with the increase in the use of wireless sensor networks.

派生語

副詞

ad hoc (comparative more ad hoc, superlative most ad hoc)

1. On the spur of the moment.
2. For a particular purpose.

同意語

• ad hocly

Further reading

• “ad hoc”, in OneLook Dictionary Search.
• ad hoc, ad-hoc at the Google Books Ngram Viewer.

アナグラム

• choad, choda, Chado-

成句

ad hoc

1. to this end, for this, to this point, to this.