1. Too small to be seen without an ultramicroscope

See also: ultramicroscope

• kind
• kind of
• kinda
• kindergarten
• kindergartener
• kindergartner
• kindhearted
• kindheartedness
• kindie
• kindle
• kindled
• kindliness
• kindling
• kindly
• kindness
• kindred
• kindred spirit
• kindy
• kine
• kinematics
• kinescope
• kinesics
• kinesiology
• kinesis
• kinesthesia