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单词 diastole
释义

diastolen.

/dʌɪˈastəʊliː/
Etymology: medieval Latin, < Greek διαστολή a putting asunder, separation, expansion, dilatation, < διαστέλλειν , < διά asunder (dia- prefix1) + στέλλειν to put, place, send, etc. Compare French diastole (14th cent. in Hatzfeld & Darmesteter).
1. Physiology. The dilatation or relaxation of the heart or an artery (or other pulsating organ in some lower animals), rhythmically alternating with the systole or contraction, the two together constituting the pulse. (Formerly sometimes applied also to the dilatation of the lungs in inspiration.)
ΘΚΠ
the world > life > the body > vascular system > circulation > pulsation > [noun] > diastole
pulsea1398
diastole1578
pulsation1612
throb1653
tick1823
1578 J. Banister Hist. Man vii. f. 92v Diastole, [is] when the hart in his dilatation receiueth in of spirite.
1606 S. Daniel Queenes Arcadia iii. i. sig. F1v The Systole, and Dyastole of your pulse, Do shew your passions most hystericall.
1660 R. Boyle New Exper. Physico-mechanicall Digress. 350 The Systole and Diastole of the Heart and Lungs, being very far from Synchronical.
a1711 T. Ken Hymnotheo in Wks. (1721) III. 79 His Heart a sudden gentle opning feels; It seem'd no more by Systole compress'd, But in a fix Diastole at rest.
1835 W. Kirby On Power of God in Creation of Animals I. v. 174 Nutrition seems carried on by a kind of systole and diastole, the sea water being alternately absorbed and rejected by the tubes composing the substance of the sponge.
1880 T. H. Huxley Crayfish ii. 74 When the systole is over the diastole follows.
figurative.1834 T. Carlyle Sartor Resartus ii. iii, in Fraser's Mag. Feb. 188/2 As in longdrawn Systole and longdrawn Diastole, must the period of Faith alternate with the period of Denial.1854 T. De Quincey Eng. Mail Coach (rev. ed.) in Select. Grave & Gay II. 300 The great respirations, ebb and flood, systole and diastole, of the national intercourse.1872 ‘G. Eliot’ Middlemarch IV. vii. lxiii. 6 There must be a systole and diastole in all inquiry.
2. Ancient Greek Prosody and Latin Prosody. The lengthening of a syllable naturally short.
ΘΚΠ
society > leisure > the arts > literature > poetry > versification > rhythm > [noun] > quantity > long syllable > lengthening
diastole1580
diectasis1894
1580 E. Spenser To Master G. Harvey in Wks. (Globe) App. ii. 709/1 Heaven being used shorte as one sillable, when it is in verse stretched out with a Diastole, is like a lame dogge that holdes up one legge.
1656 J. Smith Myst. Rhetorique Unvail'd 177 Diastole..extension, or lengthening.
1704 in J. Harris Lexicon Technicum I. Diastole..'Tis also the making long a Syllable which is naturally short.
3. Ancient Greek Grammar. A mark (originally semicircular) used to indicate separation of words; still occasionally used, in the form of a comma, to distinguish ὅ,τι, ὅ,τε, neuter of ὅστις, ὅστε, from ὅτι (that), ὅτε (when).
ΘΚΠ
society > communication > writing > written character > [noun] > written character not a letter > diacritic > types of > in Greek
spirit1612
spiritus asper1649
breathing1696
diastole1704
1704 in J. Harris Lexicon Technicum I.
1833 E. Robinson tr. Buttmann Larger Greek Gram. 45 From the comma must be distinguished the Diastole or Hypodiastole—which serves more clearly to separate some short words connected with enclitics, in order that they may not be confounded with other similar words.
This entry has not yet been fully updated (first published 1895; most recently modified version published online June 2022).
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n.1578
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