Relating to or involving the amygdala, or relating to almonds and their properties.
From Greek amygdalē (almond) plus the suffix -ic meaning 'relating to' or 'of the nature of'. This adjectival form allows scientists to describe processes, chemicals, or brain activity associated with the amygdala.
The suffix -ic is one of English's most productive tools—you can add it to almost any noun and suddenly have an adjective (tragic, historic, basic, atomic)—and it came from ancient Greek, showing how modern English is essentially Greek and Latin in modern dress.
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