Words to Describe umbral

Things umbral often describes ("umbral ________")

• granules
• zone
• structures
• fields
• dots
• gloom
• temperatures
• spectrum
• features
• radius
• eclipses
• structure
• boundary
• calculus
• contact
• cone
• image
• shadows
• chromosphere
• portion
• intensity
• granulation
• flashes
• model
• oscillations
• atmosphere
• cores
• track
• regions
• eclipse
• strength
• nucleus
• shales
• layers
• edge
• phase
• area
• models
• intensities
• core
• areas
• field
• lines
• subject
• region
• path
• shadow