【医】 inert matter
be of no effect; invalidity; impotence; inefficacy; nullification; nullity
【计】 IDL; ineffectiveness
【医】 inefficacy
【经】 inefficiency; null and void
material; matter; substance
【化】 matter; substance
【医】 hylo-; mass; massa; materia; material; materies; matter; principle
substance; substantia