pithとは

意味・読み方・使い方

発音

• IPA^(key): /pɪθ/
• Rhymes: -ɪθ

名詞

pith (usually uncountable, 複数形 piths)

1. (botany) The soft, spongy substance in the center of the stems of many plants and trees.
2. The spongy interior substance of a feather or horn.
3. (anatomy) The spinal cord; the marrow.
4. (botany) The albedo of a citrus fruit.
5. (figuratively) The essential or vital part; force; energy; importance.

   The pith of my idea is that people should choose their own work hours.

   • 1975, Saul Bellow, Humboldt's Gift [Avon ed., 1976, p. 144]:

     The clothesline surrendered the pith of its soul, and Kathleen's stockings, hung at the wide end, now suggested lust.

6. (figuratively) Power, strength, might.
   • c. 1599–1602, William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358, [Act III, scene i], line 88, page 265:

     And enterprizes of great pith and moment

同意語

• (essential または necessary part): core, essence, general tenor, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nitty-gritty, nub, quintessence, soul, spirit, stuff, substance; See also Thesaurus:gist

関連する語

• pith helmet
• pithy
• pith and substance

動詞

pith (三人称単数 現在形 piths, 現在分詞 pithing, 過去形および過去分詞形 pithed)

1. (transitive) To extract the pith from (a plant stem または tree).
2. (transitive) To kill (especially cattle または laboratory animals) by cutting or piercing the spinal cord.

語源 2

From pi (“number 3.14159...”) +‎ -th.

別の表記

• pi-th

発音

• IPA^(key): /paɪθ/

形容詞

pith (not comparable)

1. The ordinal form of the number pi.

   The pith root of pi is approximately 1.439...

   • 1998 June 21, “For what x is x^x real?”, in alt.algebra.help, Usenet‎^[1], message-ID <6mhv6n$13l$1@nnrp1.dejanews.com>:

     e^(-pi/2), which is the reciprocal of the square root of e to the pith power.

   • 2000 August 9, alice, “Re: Eyecandy: Meet Compton the new Lightweight Composite Manager”, in aus.comms.mobile, Usenet‎^[2], message-ID <B5B6F806.53B5%alice@alice-didit.com>:

     That's nothing. I have an IMEI changer that will do all of the above and beat you off at the same time, while whistling the adaggio from Spartacus in Armenian and calculating pi to the pith power in swahili.

   • 2017 March 4, “The non existence of p'th root of any prime number, for (p>2) prime”, in sci.math, Usenet‎^[3], message-ID <cabe6746-8a13-44f0-9e95-30eec727654a@googlegroups.com>:

     already, we know what is minus one from Euler: it is the I*pith power of e, such that ln(-1) = i*pi

名詞

pith (複数形 piths)

1. One divided by pi.
   • 1997 April 26, Brian Hutchings, “Re: Trigonometric Functions”, in sci.math, Usenet‎^[4], message-ID <1997Apr26.204554.24471@lafn.org>:

     not only that, but your "radian" axis can be labelled as *being* in units of pis, as opposed to the redundancy of 0pi, pi/2, pi etc.; conversely, your circumferential measure can be rational (または units) and your radius can be transcendental (または piths .-)

   • 2016 April 1, abu.ku...@gmail.com, “Re: pi^2/6 and 6/pi^2”, in sci.math, Usenet‎^[5], message-ID <d1d13d13-c4c0-43c3-b4cb-7911dcb24cc7@googlegroups.com>:

     thought it was the two-sixths power of pi, and teh^[sic] secondpower of six piths

   • 2017 January 13, thugst...@gmail.com, “pith is at most a third”, in sci.physics, Usenet‎^[6], message-ID <89a35ff8-1df1-4ab5-baf5-fdc605207710@googlegroups.com>:

     of course, although a pith is less than a third, hence pi is more than three, say, thirty-one tenths, but 22/7 is still less than pi, and that's a rather small gore