mlkg

mLkg is a term occasionally encountered in informal writing that combines the units of milliliters (mL) and kilograms (kg) into a single symbol. There is no formal definition of mLkg in metrology, pharmacology, or standard unit catalogs, and it is not recognized as an official unit by major standards bodies.

In practice, the meaning of mLkg varies by context. The most common informal interpretation treats it as a shorthand for milliliters per kilogram (mL/kg), a dosage or concentration metric widely used to scale liquid volumes to body mass in medicine, nutrition, and veterinary care. In other contexts, mLkg may simply be a concatenation of symbols without an explicit operation, which creates ambiguity and is avoided in formal documentation.

Because mLkg is not standardized, readers should seek explicit definitions when encountered. If an author intends mL/kg, they should write it with a slash. If mLkg is used to denote a field in a dataset or a variable name, its meaning should be defined in accompanying material.

Example: a dose of 10 mL/kg given to a 5 kg subject equals 50 mL. This illustrates how the mL/kg interpretation operates; without clarification, the concatenated form mLkg can be misleading.