matricide /māˈtri- or matˈri-sīd/

1. A murderer of his or her own mother
2. The murder of one's own mother

matricīˈdal adjective

• pen friend
• pen friends
• penful
• penfuls
• penguin
• penguineries
• penguinery
• penguinries
• penguinry
• penguins
• penguin suit
• penguin suits
• pen-gun
• pen-guns
• penholder
• penholders
• peni
• penial
• penicillate
• penicilliform
• penicillin
• penicillinase
• penicillinases
• reboils
• reboot