英和和英

発音

• (英国発音) IPA: /dɪˈfɪʃənt/
• 韻: -ɪʃənt

形容詞

deficient (comparative more deficient, superlative most deficient)

1. Lacking something essential; often construed with in.

   Synonyms: absent, poor in, void of; see also Thesaurus:lacking

   They were deficient in social skills.

2. Insufficient or inadequate in amount.
   • 1882, Edward Tuckerman, Henry Willey, A Synopsis of the North American Lichens (part 1)

     Apothecia lecanoroid; multilocular; each cell containing a single theke; paraphyses deficient.

3. (mathematics) Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n)

使用する際の注意点

See deficiency § Usage notes.

派生語

関連する語

名詞

deficient (plural deficients)

1. A person who is deficient.
   • 2004, Steven Noll, James Trent, Mental Retardation in America: A Historical Reader, page 316:

     This was justified by the rationale that mental deficients, by definition, are not able to succeed in society.

Further reading

• “deficient”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “deficient”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.