1. (physics) having a non-integer spin, e.g. of fields representing fermions

Encyclopedia: Fermionic

• in due season
• in due time
• in earnest
• in effect
• in essence
• in everyone's thoughts
• in evidence
• in extremis
• in fact
• in fiscal matters
• in flagrante delicto
• in flight
• in for
• in force
• in front
• in full
• in full action
• in full swing
• in full view
• in gear
• in general
• in good order
• in good spirits
• in good taste
• in good time