digitとは意味・読み方・使い方

発音

• enPR: dĭ'jĭt, IPA^(key): /ˈdɪdʒɪt/
• 韻: -ɪdʒɪt

名詞

The Egyptian hieroglyph for "digit" (ḏbꜥ, D50).

digit (複数形 digits)

1. (mathematics) The whole numbers from 0 to 9 and the Arabic numerals representing them, which are combined to represent base-ten numbers.

   The number 123.4 has four digits: the hundreds digit is 1, the tens digit is 2, the units digit is 3, and the tenths digit is 4.

2. (mathematics) A distinct symbol representing one of an arithmetic progression of numbers between 0 and the radix.

   Hexadecimal numeration (Base sixteen) includes the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 but also A (=10 decimal), B, C, D, E, and F. Sixteen itself is written as the two-digit number 10.

3. (units of measure, astronomy) ¹⁄₁₂ the apparent diameter of the sun or moon, (chiefly) as a measure of the totality of an eclipse.

   A six-digit eclipse covers half the lunar surface.

4. (historical units of measure) A unit of length notionally based upon the width of an adult human finger, standardized differently in various places and times, (especially) the English digit of ¹⁄₁₆ foot (about 1.9 cm).
5. (units of measure, obsolete) Synonym of inch.
6. (anatomy) A narrow extremity of the human hand or foot: a finger, thumb, or toe.
   • 2018, Shiv Kotecha, The Switch, United States: Wonder, →ISBN, page 144:

     Jai grabbed Andrew’s shoulders with the same three digits he had used to grab the ancient doubter’s skull and spun him around.

7. (zoology) Similar or similar-looking structures in other animals.
   • 1866, Richard Owen, Anatomy of Vertebrates

     The ruminants have the cloven foot, i.e. two hoofed digits on each foot.

8. (geometry, rare, obsolete) Synonym of degree: ¹⁄₃₆₀ of a circle.

同意語

• (numerical place): place, figure (くだけた用法, usually in discussion of money)
• (astronomical unit): finger (廃れた用法)
• (unit of length): finger, fingerbreadth, fingersbreadth

下位語

• (extremity of the hand または foot): finger, thumb, toe

関連する語

• digits

派生語

• digital
• digit counter
• digitize
• digit number (廃れた用法)
• digit pulse

動詞

digit (三人称単数 現在形 digits, 現在分詞 digiting, 過去形および過去分詞形 digited)

1. (transitive) To point at or point out with the finger.

参照

• "digit, n. and adj.", in the Oxford English Dictionary, Oxford: Oxford University Press.