permeant

Able to penetrate

Permeant describes something that permeates or has the capacity to pass through a barrier, especially a membrane or other porous material.

The word appears mainly in scientific contexts: permeant ions, permeant molecules.

A permeant substance can diffuse or penetrate where others cannot.

penetrating

infiltrating

Entering covertly to gather information

pervasive · imbuing · impregnating · interpenetrating · pervading · saturating · soaking · infusing · spreading · leaching

diffusion

osmosis

Solvent crossing semipermeable barrier

concentration · solute · solvent · passive · equilibrium · molecule · transport · barrier · flux · percolation

absorption

sponge

Absorbent cleaning material

assimilation · intake · retention · imbibe · saturate · sorption · absorbent · wicking · uptake · percolation

Opposites
ability to pass through

permeantimpermeable

Cannot be penetrated

impenetrable · blocked · sealed · excluded · repelled

permanence/persistence

permeanttransient

Temporary, soon departing

temporary · fleeting · ephemeral · superficial · surface-level

Family

permeate, permeable, impermeable, permeating, permeation, impermeability, permeability, semipermeable

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Used worldwide · Timeless · Abstract · Rated G