1. Dark-coloured insect having predaceous aquatic larvae
   - alderfly, alder fly

Type of: neuropteran, neuropteron, neuropterous insect

Part of: genus Sialis, Sialis

• adult
• adult body
• adult education
• adult female
• adult female body
• adult intelligence
• adult male
• adult male body
• adult respiratory distress syndrome
• adult tooth
• adult-onset diabetes
• adult-onset diabetes mellitus
• adulterant
• adulterate
• adulterated
• adulterating
• adulteration
• adulterator
• adulterer
• adulteress
• adulterine
• adulterous
• adulterously
• adultery
• adultescent