英和和英

語源

From bio- +‎ availability.

名詞

bioavailability (countable and uncountable, plural bioavailabilities)

1. (biology, medicine) The extent to which a substance is molecularly available to cells and tissues in a living organism, which depends on factors such as solubility, pH level, and presence of enzymes and cofactors; for example, even if one's ingestion of vitamin B₁₂ is average/typical, one might nonetheless have B₁₂ deficiency if one has poor metabolism of this particular vitamin.
   1. (pharmacology, nutrition) The amount of drug or nutrient which reaches the site of physiological activity after administration.

      poor/low oral bioavailability

関連する語

• bioavailable
• bio-unavailable
• geoavailability

参考

• bioactivity