infest /in-festˈ/

1. To swarm over, cover or fill, in a troublesome, unpleasant or harmful way
2. To invade and live on or in as a parasite
3. To disturb or harass

1. Hostile
2. Troublesome

infestāˈtion noun

1. Attack, or the condition of being attacked, esp by parasites
2. Molestation (obsolete)

• brain coral
• brain corals
• brain damage
• brain-damaged
• brain-dead
• brain death
• brain deaths
• brain drain
• brain drains
• brained
• brain fag
• brain fever
• brain-fever bird
• brain-fever birds
• brain fevers
• brainiac
• brainiacs
• brainier
• brainiest
• braininess
• braininesses
• braining
• brainish
• brainless
• brainlessly