radiolead
noun
A mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also) lead-210 (radium D), the major radioactive component of this mixture, which decays by beta emission with a half-life of about 22 years.
Origin
Early 20th century.
- Mearns' quail
- Mearns's coyote
- meas.
- measled
- measles
- measlings
- measly
- measurability
- measurable
- measurableness
- measurably
- measurage
- measure
- measured
- measured drawing
- measuredly
- measured mile
- measuredness
- measureful
- measureless
- measurelessly
- measurelessness
- measurement
- measurement cargo
- measurement goods