time domainn.
/ˈtʌɪm də(ʊ)ˌmeɪn/, U.S. /ˈtaɪm dəˌmeɪn/ 1. The realm or domain of time as distinct from that of space.
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1925 Philos. Mag. 50 696 In the case of the full space-time of four dimensions the rôle of the α-plane will be taken over by a three space Σ, divided by a closed surface λ into the time-domain ΣT and space-domain ΣS.
1966 Feasibility Global Observ. & Anal. Exper. (U.S. Nat. Acad. Sci.) iii. 49 The desirability of increasing the frequency of standard radiosonde observations should be examined as a means of substituting information in the time domain for information in the space domain.
1997 G. M. Megson & X. Chan Automatic Parallelization Class Regular Computations i. 8 Lamport..introduced the idea of a linear mapping of a computational graph onto a (N−1)-D space (or processor) domain and 1-D time domain by a space-time transformation.
2006 A. R. Seyal Poetic Stance Holy Qur'an 76 How could one perceive the travel in time domain without even a fraction of moment passing on this earth?
2. Physics and Electronics. Time considered as an independent variable in the analysis or measurement of time-varying phenomena. Frequently attributive, with reference to such measurement or analysis. Cf. frequency-domain n. at frequency n. Additions, domain n. 4e.time-domain reflectometer: see reflectometer n. 3.
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1942 M. F. Gardner & J. L. Barnes Transients Linear Syst. I. viii. 241 A plot of this series consists of the succession of sinusoidal pulses..which was the original function in the time domain.
1953 E. A. Guillemin Introd. Circuit Theory ix. 416 We have recognized a pattern for converting a frequency-domain function into a time-domain function.
1996 E. L. Keller in S. A. Berger et al. Introd. Bioengin. vi. 248/2 The inverse problem can also be solved in the time domain using an inverse operation called deconvolution.
2006 J. R. Lakowicz Princ. Fluorescence Spectroscopy (ed. 3) iv. 98/1 In time-domain or pulse fluorometry, the sample is excited with a pulse of light.
This is a new entry (OED Third Edition, March 2012; most recently modified version published online March 2022).
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