1. Any agent that retards or delays or hinders
   - retardant, retardation

Type of: agent

• leafnose bat
• leafstalk
• leafy
• leafy liverwort
• leafy spurge
• leafy vegetable
• leafy-stemmed
• league
• League of Iroquois
• League of Nations
• league table
• league together
• leaguer
• leak
• leak fungus
• leak out
• leakage
• leaker
• Leakey
• leakiness
• leakproof
• leaky
• leal
• lean
• lean against