1. Containing small amounts of other chemicals, hence slightly impure
   "technical-grade sulphuric acid"
   - technical grade

See also: impure

• lustration
• lustre
• lustreless
• lustrelessness
• lustreware
• lustring
• lustrous
• lustrously
• lustrum
• lusty
• lusus naturae
• Lut Desert
• Luta
• lutanist
• lute
• luteal
• luteal phase
• lutecium
• lutefisk
• lutein
• luteinizing hormone
• lutenist
• luteotropin
• luteous
• lutetium