irritationとは

発音

• 韻: -eɪʃən

名詞

irritation (countable かつ uncountable, 複数形 irritations)

1. The act of irritating or annoying

   What irritation cause you to be so moody?

2. The state of being irritated
   • 2012 March-April, Anna Lena Phillips, “Sneaky Silk Moths”, in American Scientist‎^[1], volume 100, number 2, page 172:

     Last spring, the periodical cicadas emerged across eastern North America. Their vast numbers and short above-ground life spans inspired awe and irritation in humans—and made for good meals for birds and small mammals.

3. The act of exciting, or the condition of being excited to action, by stimulation; -- as, the condition of an organ of sense, when its nerve is affected by some external body; especially, the act of exciting muscle fibers to contraction, by artificial stimulation; as, the irritation of a motor nerve by electricity; also, the condition of a muscle and nerve, under such stimulation.
4. A condition of morbid excitability or oversensitiveness of an organ or part of the body; a state in which the application of ordinary stimuli produces pain or excessive or vitiated action.

派生語

• irritative
• irritant

関連する語

• irritate

Further reading

• irritation in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• irritation in The Century Dictionary, The Century Co., New York, 1911