hygienic

From French hygiénique. Displaced earlier hygienal.

• IPA^(key): /haɪˈd͡ʒiːnɪk/, /haɪˈd͡ʒɛnɪk/, /hʌɪd͡ʒɪˈɛnɪk/

• Audio (US)

  (file)

• Rhymes: -iːnɪk, -ɛnɪk

hygienic (comparative more hygienic, superlative most hygienic)

1. Pertaining to hygiene; clean, sanitary.
2. (programming slang, of a macro) Whose expansion is guaranteed not to cause the accidental capture of identifiers.
   • 2014, Colin Jones, Mastering Clojure Macros: Write Cleaner, Faster, Smarter Code, Pragmatic Bookshelf, →ISBN:

     Of course, anyone with a Scheme background is probably howling at this point because they have a hygienic macro system that makes unintended variable capture impossible. Allowing variable capture when we really, really want it makes Clojure's macro system technically more dangerous than hygienic systems.

• unhygienic

• hygienically