( n. )
Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of medicines or means.
( n. )
Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of medicines or means.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012