1. Having the same foci

Encyclopedia: Confocal

• flexible joint
• flexible sigmoidoscope
• flexible sigmoidoscopy
• flexibleness
• flexibly
• flexile
• flexion
• flexitime
• flexor
• flexor muscle
• flextime
• flexuous
• flexure
• flibbertigibbet
• flick
• flick-knife
• flicker
• flickering
• flickertail
• flier
• flies
• flight
• flight attendant
• flight control
• flight deck