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Teratogens

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

Teratogens are substances or environmental factors that can cause developmental malformations in a fetus when the mother is exposed during pregnancy.