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non-dispersive
non-dispersive adj.
Brit. 
/ˌnɒndᵻˈspəːsɪv/
, /ˌnɒndᵻˈspəːsɪv/U.S. /ˌnɑndəˈspərsɪv/
/ˌnɑndəˈspərsɪv/ΚΠ
1905 Proc. Royal Soc. A. 76 370 An isotropic non-dispersive transparent medium (the solvent).
1962 W. B. Thompson Introd. Plasma Physics ii. 11 These oscillations have the unusual character of being non-dispersive.
1999 Plumbing, Heating & Air Movement Apr. 32/6 Models such as the IAQ Surveyor will be highlighted, including the new non-dispersive infrared detection (NDIR) sensor.
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