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词汇 ld
释义

Ld1

abbreviation
  • Lord.

    Ld Lothian

LD2

abbreviation
  • 1North American Learning disability (or disabled).

  • 2Lethal dose (of a toxic compound, drug, or pathogen). It is usually written with a following numeral indicating the percentage of a group of animals or cultured cells or microorganisms killed by such a dose, typically standardized at 50 per cent (LD₅₀).

    Example sentencesExamples
    • You may obtain the LD50 number by contacting the manufacturer at the phone number listed on the pesticide label.
    • That's all well and good, but how do you attach significance to the LD50 numbers that you might find?
    • Special calculations are used when translating animal LD50 values to possible lethal dose values for humans.
    • The only figure of real interest is the subcutaneous LD50 as few snakes can ever achieve anything other than that.
    • The LD50 test does not account for drug interactions, and is therefore of little use in such cases.
  • 3Lakshadweep.

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