Resembling or shaped like an almond; relating to the amygdala of the brain.
From amygdala + -oid (resembling/like). The -oid suffix comes from Greek eidos (form). This term has been used in anatomy since the 18th century to describe structures with an almond-like appearance.
The amygdaloid nucleus in your brain is your emotional alarm system—and it got its name just because it's almond-shaped! Neurons that process fear and emotion are literally named after fruit, showing how visual description preceded our understanding of brain function.
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