decibarn.
/ˈdɛsɪbɑː/ Meteorology.
A unit of barometric pressure equal to one-tenth of a bar.
ΚΠ
1910 V. Bjerknes et al. Dynamic Meteorol. & Hydrogr. i. i. 7 It will be necessary for us to have names for the employed units of pressure..some name derived from the word ‘barometer’. We shall choose the name bar as being the shortest, and designate the decimal parts of it as the decibar, centibar, and millibar.
1914 Q. Jrnl. Royal Meteorol. Soc. 40 160 I [sc. Bjerknes] therefore coined the terms ‘bar’, ‘decibar’, ‘centibar’, and ‘millibar’, as names for the units of pressure... I employed these expressions for the first time in a paper published in 1906 [in Beiträge zur Physik der freien Atmosphäre, Strassburg].
1967 Oceanogr. & Marine Biol. 5 90 The difference between the geostrophic circulation at 1750 decibars and that at 1000 decibars is negligible.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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n.1910- two-horsed
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