median lethal dose
noun
The dose of a drug or of ionizing radiation that kills 50 per cent of test subjects; symbol LD50.
Origin
1920s.
- overdetermine
- overdevelop
- overdevelopment
- overdiagnose
- overdiagnosis
- over-differentiated
- over-differentiation
- overdischarge
- overdispersal
- overdispersed
- overdispersion
- overdo
- overdoer
- overdog
- overdominance
- overdominant
- overdone
- overdoor
- overdosage
- overdose
- overdot
- overdotted
- overdotting
- overdraft
- overdramatic