1. North American fern having tall erect pinnate fronds and a few sporogenous pinnae at or near the centre of the fertile fronds
   - interrupted fern

Type of: flowering fern, osmund

• supervene upon
• supervenient
• supervention
• supervise
• supervised
• supervising
• supervision
• supervisor
• supervisor call instruction
• supervisory
• supervisory program
• supervisory routine
• supervisory software
• superwoman
• supinate
• supination
• supinator
• supine
• supinely
• supper
• supper club
• supperless
• suppertime
• supping
• supplant