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One of two or more atoms having the same atomic number but different mass numbers.

[iso- + Greek topos, place (so called because the isotopes of a chemical element occupy the same position in the periodic table of elements).]

i′so·top′ic (-tŏp′ĭk) adj.
i′so·top′i·cal·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isotopic - of or relating to or having the relation of an isotope
References in periodicals archive ?
groundwater, surface water, and in some cases seawater) with different isotopic signatures.
worked with the International Atomic Energy Agency to develop a suite of three natural gas standards for molecular and stable isotopic analyses.
Occurrence of an unrelated disease on the site of a healed disease is known as Wolf's isotopic response.
The dietary effects on nutrient assimilation, isotopic turnover rates, and discrimination factors were assessed using exponential models.
Sector Field Mass Spectrometry for Elemental and Isotopic Analysis
This author investigated the oxygen and hydrogen isotopic compositions of emeralds from the Ianapera deposit at Madagascar.
INTRODUCTION: The term Wolf's isotopic response refers to the occurrence of a new skin disorder at the site of another, unrelated and already healed skin disease.
The deposition of carbonaceous sediment in these periods is also suggested by the secular variation in the stable carbon isotopic record (i.
TEHRAN (FNA)- Scientists reconciled the accepted model of the moon's formation with the unexpectedly similar isotopic fingerprints of both bodies and the results suggest that the impact that formed the moon was so violent, the resulting debris cloud mixed thoroughly before settling down and forming the moon.
Now, new isotopic measurements by researchers at NASA's Goddard Space Flight Center reveal that an ocean once covered approximately twenty percent of the Martian surface.
It was reported that the left and right side sagittal otoliths of most marine fishes were identical and no significant morphological and isotopic differences were found between them [4-6], with an exception of flatfish [7-9].