hydrophilic

adj. having an affinity for water

Hydrophile, from the Greek (hydros) "water" and φιλια (philia) "friendship," refers to a physical property of a molecule that can transiently bond with water (H2O) through hydrogen bonding. This is thermodynamically favorable, and makes these molecules soluble not only in water, but also in other polar solvents. There are hydrophilic and hydrophobic parts of the cell membrane.
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Adjective
1. having a strong affinity for water; tending to dissolve in, mix with, or be wetted by water
(antonym) hydrophobic
(similar) deliquescent
(classification) chemistry, chemical science

Having a strong affinity for water.

A polar molecule or group that can form strong hydrogen bonds with water.