Hydrogen atom that can dissociate.

An acidic oxide is an oxide that either produces an acidic solution upon addition to water, or acts as an acceptor of hydroxide ions effectively functioning as a Lewis acid.

Acidic rock or acid rock refers to the chemical composition of igneous rocks that has 63% wt% SiO2 content.

Protein marker for astrocytes, neurology.

Protein stimulating growth, repair, angiogenesis.