1. Curiosity that motivates investigation and study
   - desire to know, thirst for knowledge

Type of: curiosity, wonder

• lethal agent
• lethal dose
• lethal gene
• lethality
• lethally
• lethargic
• lethargic encephalitis
• lethargically
• lethargy
• Lethe
• Lethean
• lethologica
• Leto
• Lett
• letter
• letter bomb
• letter bond
• letter box
• letter carrier
• letter case
• letter of credit
• letter of intent
• Letter of Jeremiah
• letter of mark and reprisal
• letter of marque