GRE Word List

ISOTOPE

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

The meaning of the word isotope is 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.

Random words

WordMeaning
obfuscateto throw into shadow : darken
preternaturalexisting outside of nature
optometrista specialist licensed to practice optometry compare ophthalmologist
downcastlow in spirit : dejected
plastera medicated or protective dressing that consists of a film (as of cloth or plastic) spread with a usually medicated substance
genealogyan account of the descent of a person, family, or group from an ancestor or from older forms
librettothe text of a work (such as an opera) for the musical theater
coronera usually elected public officer who is typically not required to have specific medical qualifications and whose principal duty is to inquire by an inquest into the cause of any death which there is reason to suppose is not due to natural causes compare medical examiner
indulgentwilling to allow excessive leniency, generosity, or consideration : indulging or characterized by indulgence
opprobriumsomething that brings disgrace