penumbra /pe-numˈbrə/

1. A partial or lighter shadow round the perfect or darker shadow produced by an eclipse or by a large unfocused light source shining on an opaque object
2. The less dark border of a sunspot or any similar spot
3. The part of a picture where the light and shade blend into each other

penumˈbral adjective

penumˈbrous adjective

• artificialities
• artificiality
• artificialize
• artificialized
• artificializes
• artificializing
• artificial kidney
• artificial kidneys
• artificial language
• artificial languages
• artificial leather
• artificial life
• artificially
• artificial magnet
• artificialness
• artificialnesses
• artificial person
• artificial porcelain
• artificial radioactivity
• artificial respiration
• artificial satellite
• artificial selection
• artificial silk
• artificial sunlight
• artilleries