atavism /atˈə-vi-zm/

1. The reappearance of ancestral, but not parental, characteristics
2. Reversion to an ancestral, or to a primitive, type

atavistˈic adjective

atavistˈically adverb

• halobiont
• halobiontic
• halobionts
• halobiotic
• halocarbon
• halocarbons
• halo'd
• haloed
• halo effect
• haloes
• halogen
• halogenate
• halogenated
• halogenates
• halogenating
• halogenous
• halogens
• haloid
• haloids
• haloing
• halon
• halons
• haloperidol
• halophile
• halophiles