afterloadingn.

Brit.

/ˈɑːftələʊdɪŋ/,

/ˈaftələʊdɪŋ/, U.S.

/ˈæftərˌloʊdɪŋ/

Origin: Probably formed within English, by derivation. Etymons: afterload v., -ing suffix¹; after- prefix, loading n.

Etymology: Probably partly < afterload v. + -ing suffix¹, and partly < after- prefix + loading n.

1. Physiology. The subjection of a muscle to an afterload (afterload n. 2); the degree of afterload to which a muscle, esp. the heart, is subjected.

ΚΠ

1921 Physiol. Abstr. 6 119 The period of afterloading and the number of fibres stimulated are of importance in determining the latent period.

1977 Amer. Jrnl. Cardiol. 40 748/1 We found a rather simple relation between the instantaneous pressure and instantaneous volume, which is insensitive, at least in systole, to differences in preloading or afterloading conditions.

1987 R. J. Shephard Physical Activity & Aging iii. 69 This may reflect..lesser cardiac compliance and thus reduced diastolic filling, or increased afterloading.

2009 J. J. Marinni & A. P. Wheeler Crit. Care Med. i. 8 Although multifactorial in origin, the paradoxical pulse observed during acute asthma results in part from inspiratory afterloading of the LV [= left ventricle].

2. Medicine. Insertion of a radioactive substance into a receptacle previously implanted at a specific site in the body; the type of radiotherapy that uses this technique. Frequently attributive.

ΚΠ

1956 Jrnl. Faculty Radiologists 8 29 Afterloading requires implantation of hollow needles followed later by the activation of these needles with radio-active sources.

1986 Endoscopy 18 27 The afterloading tube is placed endoscopically under direct vision.

1998 B. L. Johnson & J. Gross Handbk. Oncol. Nursing (ed. 3) ii. 51 A remote afterloading system mechanically loads and unloads the radioactive sources.

2006 C. A. Perez et al. in S. A. Levitt et al. Techn. Basis Radiation Therapy (ed. 4) xiv. 311/2 Figure 14.1 shows the procedures followed for insertion and afterloading of the rigid guides in tumors approachable from one side only.

This is a new entry (OED Third Edition, September 2011; most recently modified version published online December 2021).

单词	afterloading
释义	afterloadingn. Brit. /ˈɑːftələʊdɪŋ/, /ˈaftələʊdɪŋ/, U.S. /ˈæftərˌloʊdɪŋ/ Origin: Probably formed within English, by derivation. Etymons: afterload v., -ing suffix¹; after- prefix, loading n. Etymology: Probably partly < afterload v. + -ing suffix¹, and partly < after- prefix + loading n. 1. Physiology. The subjection of a muscle to an afterload (afterload n. 2); the degree of afterload to which a muscle, esp. the heart, is subjected. ΚΠ 1921 Physiol. Abstr. 6 119 The period of afterloading and the number of fibres stimulated are of importance in determining the latent period. 1977 Amer. Jrnl. Cardiol. 40 748/1 We found a rather simple relation between the instantaneous pressure and instantaneous volume, which is insensitive, at least in systole, to differences in preloading or afterloading conditions. 1987 R. J. Shephard Physical Activity & Aging iii. 69 This may reflect..lesser cardiac compliance and thus reduced diastolic filling, or increased afterloading. 2009 J. J. Marinni & A. P. Wheeler Crit. Care Med. i. 8 Although multifactorial in origin, the paradoxical pulse observed during acute asthma results in part from inspiratory afterloading of the LV [= left ventricle]. 2. Medicine. Insertion of a radioactive substance into a receptacle previously implanted at a specific site in the body; the type of radiotherapy that uses this technique. Frequently attributive. ΚΠ 1956 Jrnl. Faculty Radiologists 8 29 Afterloading requires implantation of hollow needles followed later by the activation of these needles with radio-active sources. 1986 Endoscopy 18 27 The afterloading tube is placed endoscopically under direct vision. 1998 B. L. Johnson & J. Gross Handbk. Oncol. Nursing (ed. 3) ii. 51 A remote afterloading system mechanically loads and unloads the radioactive sources. 2006 C. A. Perez et al. in S. A. Levitt et al. Techn. Basis Radiation Therapy (ed. 4) xiv. 311/2 Figure 14.1 shows the procedures followed for insertion and afterloading of the rigid guides in tumors approachable from one side only. This is a new entry (OED Third Edition, September 2011; most recently modified version published online December 2021). < n.1921
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