isotopic
/ˌaɪ.səˈtɒp.ɪk/ IELTSAcademic
adjective
Relating to isotopes, which are forms of the same chemical element with different masses. It is used in science, especially chemistry, physics, and geology.
- The lab measured isotopic changes in the sample.
- Isotopic analysis helped identify the rock's age.
- Scientists studied isotopic ratios in the water.
Adinary Nuance
Isotopic is more specific than chemical or atomic. Use it when you are talking about isotopes, not just about elements in general. It is a technical word, so it sounds natural in science writing, but not in everyday speech. Writers choose isotopic when the exact mass or origin of a substance matters.
In other languages
- Vietnamese
- đồng vị
- Spanish
- isotópico
- Chinese
- 同位素的
- Japanese
- 同位体の
- Korean
- 동위원소의
Etymology
Isotopic comes from isotope, a word coined in English in 1913 from Greek roots meaning “same place.” The adjective appeared later in scientific writing.
Common phrases
isotopic analysisisotopic compositionisotopic ratioisotopic signature
Synonyms
Related words
Frequently asked questions
- Is isotopic a common everyday word?
- No. It is mainly used in science, especially academic or technical writing.
- What is the difference between isotopic and atomic?
- Atomic is broader and refers to atoms in general. Isotopic is narrower and refers to isotopes.
- Can I use isotopic in IELTS writing?
- Yes, if the topic is science, environment, or research. It sounds formal and accurate.
- How do I use isotopic in a sentence?
- Put it before a noun: isotopic analysis, isotopic data, or isotopic evidence.