1. (astronomy) a line of constant light intensity

Derived forms: isophotes

• necrotizing enteritis
• necrotizing enterocolitis
• nectar
• nectar-rich
• nectariferous
• nectarine
• nectarine tree
• nectarous
• nectary
• Necturus
• Necturus maculosus
• neddy
• Nederland
• need
• needed
• needer
• needful
• needfully
• neediness
• needle
• needle bearing
• needle biopsy
• needle blight
• needle cast
• needle furze