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Isothermal line
Isothermal zones
isothermally
isothermic
Isothermobath
Isothermobathic
Isotherombrose
isothiocyanate
Isotonic
isotonic exercise
isotonic solution
Isotonic system
isotonically
isotonicity
isotopic
isotopic spin
isotopically
isotretinoin
Isotrimorphic
Isotrimorphism
Isotrimorphous
isotropic
isotropically
Isotropism
isotropous
isotropy
Isouric

isotope definitions

WordNet (r) 3.0 (2005)

n
1: one of two or more atoms with the same atomic number but with different numbers of neutrons

Merriam Webster's

noun Etymology: is- + Greek topos place Date: 1913 1. any of two or more species of atoms of a chemical element with the same atomic number and nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties 2. nuclide isotopic adjective isotopically adverb

Oxford Reference Dictionary

n. Chem. one of two or more forms of an element differing from each other in relative atomic mass, and in nuclear but not chemical properties. Derivatives: isotopic adj. isotopically adv. isotopy n. Etymology: ISO- + Gk topos place (i.e. in the periodic table of elements)

Collin's Cobuild Dictionary

(isotopes) Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical properties. (TECHNICAL) ...tritium, a radioactive isotope of hydrogen. N-COUNT



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