Critical period

{
  "id": "MLC-T-CHM-002697",
  "term": "Critical period",
  "field": "Chemistry",
  "definition": "A specific, limited time window during development when an organism is highly susceptible to external influences, such as exposure to a toxicant, which can lead to permanent structural or functional changes. Exposure outside this window may result in different or no adverse effects. For instance, the first trimester of human pregnancy is a critical period for many developmental toxicants.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 741 (https://doi.org/10.1515/pac-2015-1202)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/critical-period/"
}