英和和英

語源

Borrowed from New Latin, from Ancient Greek συστολή (sustolḗ), from συστέλλω (sustéllō, “to contract”), from σύν (sún, “together”) + στέλλω (stéllō, “to send”).

発音

• (Received Pronunciation, General American, Canada, General Australian) IPA: /ˈsɪstəli/
• (New Zealand) IPA: /ˈsəstəli/
• Homophone: sisterly (non-rhotic)

名詞

systole (countable and uncountable, plural systoles)

1. (physiology) The rhythmic contraction of the heart, by which blood is driven through the arteries.
   • 1653, William Harvey, “The Causes which Mov’d the Author to Write”, in [anonymous], transl., The Anatomical Exercises of Dr. William Harvey […] Concerning the Motion of the Heart and Blood. […], London: […] Francis Leach, for Richard Lownes […], →OCLC, pages 1–2:

     […] I did almoſt beleeve, that the motion of the Heart vvas knovvn to God alone: For neither could I rightly diſtinguiſh, vvhich vvay the Diaſtole and Systole came to be, nor vvhen nor vvhere the dilation and conſtriction had its exiſtence.

   • 1972, Vladimir Nabokov, Transparent Things, McGraw-Hill, published 1972, pages 78–9:

     A double systole catapulted him into full consciousness again, and he promised his uncorrected self that he would limit his daily ration of cigarettes to a couple of heartbeats.

   • 1974, Anthony Burgess, The Clockwork Testament:

     There is no essential virtue in comfort. To be relaxed is good if it is part of a process of systole and diastole. Relaxation comes between phases of tenseness.

2. (prosody, rhetoric) A shortening of a naturally long vowel.
3. (mathematics) The shortest noncontractible loop on a compact metric space.
4. (biology) The contraction of the contractile vesicles in certain algae, plasmodia, and zoospores.

反意語

• diastole

上位語

• (prosody): metaplasm

派生語

アナグラム

• tolseys, toyless, tyloses