radioactive Definition
radio·ac·tive (rā′dē ō ak′tiv)
radioactive Related Forms
ra′dio·ac′·tively adverb
ra′dio·ac·tiv′·ity (-ak tiv′ə tē) noun
radioactive Synonyms
radioactive Usage Examples
Modifies a noun
- isotope: It relies on an analysis of how much of a radioactive isotope has decayed into its daughter isotope.
- iodine: Therefore, the radioactive iodine builds up in the thyroid gland.
- decay: The rate of radioactive decay is an example of 1st order kinetics.
- contamination: Fresh contamination found New areas of radioactive contamination have been found by monitors at Dounreay.
- waste: Deciding the future of the UK's radioactive waste Left hand column editable content area!
- tracer: Using a vein in your arm, you will receive an injection of the radioactive tracer.
Modifying Another Word
- mildly: A very small amount of a mildly radioactive substance is injected into a vein, usually in the arm.
- weakly: When a uranium-tipped weapon hits an object, it produces a vapor that is weakly radioactive.
- intensely: The dissolver, full of intensely radioactive nitric acid, is behind extremely thick shielding.
- dangerously: Much of it will remain dangerously radioactive for thousands of years.
- highly: Highly radioactive fallout would be generated even by a small nuclear weapon detonated just below the Earth's surface.
- slightly: Nuclear studies using intravenous agents which are slightly radioactive are becoming increasingly useful.
Used with adjective complement
- remain: Much of it will remain dangerously radioactive for thousands of years.
- stay: There is no safe way of disposing of nuclear waste, which can stay radioactive for 100,000 years.
- become: At present the plant is not radioactive - once it becomes radioactive the decommissioning costs increase greatly.
- make: Radioiodine ( iodine-131 ) This is iodine that has been made radioactive, similar to the iodine used for a scintigraphy scan.
Preposition: in
light: They glowed like they were radioactive in the neon light of the Hamm's beer sign over the bar.
Preposition: for
thousand: Much of it will remain dangerously radioactive for thousands of years.
Preposition: than
uranium: Depleted uranium is thus many, many times less radioactive than the uranium employed for nuclear uses.
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