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1. A line on a weather map connecting points of equal atmospheric pressure. Also called isopiestic.
2. Any of two or more kinds of atoms having the same atomic mass but different atomic numbers.

[iso- + Greek baros, weight; see gwerə- in Indo-European roots.]

i′so·bar′ic (-bär′ĭk, -băr′-) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌaɪsəʊˈbærɪk) or


1. (Physical Geography) Also: isopiestic having equal atmospheric pressure
2. (Physical Geography) of or relating to isobars
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Furthermore, with respect to the frequently considered (thermochemical) reference temperature, [T.sub.r] [equivalent to] 298.15 K, we have still quoted the fitted (smoothed) isobaric heat capacity values, [C.sub.p] ([T.sub.r]) [14, 50], and the respective entropy values and enthalpy differences defined by [14,15,50]
[19] in the study that intrathecal 15 mg isobaric bupivacaine with 200 [micro]g morphine provides longer duration of analgesia and similar haemodynamic effects and ephedrine requirement and side effects when compared to heavy bupivacaine-morphine or bupivacaine-fentanyl combinations during cesarean section.
This can be explained using Figure 2, in which the isobaric density diagram of propene is shown.
Quantitative measurement using labeling and label-free methods is allotted several chapters, including isobaric tagging, selected reaction monitoring, phosphorus and selenium quantification, ion intensity chromatograms, and data independent acquisition.
B) comparing said measurement to a reference measurement, wherein the reference measurement is obtained from a quantitative measurement of the polypeptide, or of the nucleic acid sequence encoding the polypeptide, of a second sample taken from reference skin distinct from the skin of the first sample, the quantitative measurements being made by means of an isobaric labeling technique, said condition of the skin being chosen from skin dryness and chronological and/ or photo-induced skin aging.
To get around this problem, the researchers used the remotely operated deep-sea vehicle Jason to send down devices called Isobaric Gas-Tight samplers (IGTs) to the vents.
The streamline and isobaric line around a sphere during water entry are shown in Figures 10 and 11.
Since these lists include isobaric compounds that must be separated chromatographically, column choice is a critical decision.
A self-priming pump ensures an isobaric filtration cycle and also powers the automated wash cycles that regenerate the cartridges.
In other words, for any [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] (k: even), there exists an isobaric polynomial P [member of] [O.sub.p] [[x.sub.1], ***, [x.sub.14]] such that f = P([X.sub.4] , ***,[X.sub.48]).
There is the feel of Joan Mitchell painting in France near Monet's garden in the late 1960s (and Mitchell's famous comment "I carry my landscapes around with me"); there is the isobaric swell of Nacy Graves's watercolors in the late '70s (currently on view at MitchellTnnes &C Nash gallery); there is Keltie Ferris making sprayed neon elegant.