Meaning of Hardness
Bangla: দ্রঢ়িমা, কঠিনতা, কঠোরতা
कठोरता, काठिन्य, दृढ़ता
Unknown / অজানা / अज्ञात
the state or quality of being hard: the hardness of ice.
a relative degree or extent of this quality: wood of a desirable hardness.
that quality in water that is imparted by the presence of dissolved salts, especially calcium sulfate or bicarbonate.
unfeelingness or jadedness; callousness.
harshness or austerity, as of a difficult existence.