1. Small rock-inhabiting fern of northern temperate zone and Hawaii with pinnate fronds
   - maidenhair spleenwort

Type of: spleenwort

• acetyl chloride
• acetyl group
• acetyl radical
• acetylate
• acetylation
• acetylcholine
• acetylene
• acetylenic
• acetylic
• acetylise
• acetylize
• acetylsalicylic acid
• ACH
• Achaea
• Achaean
• Achaian
• ache
• achene
• achenial
• Acheron
• Acheronian
• Acherontia
• Acherontia atropos
• Acherontic
• Acheson