Examlex
What is the outer extraembryonic membrane that forms finger-like projections called villi and helps form the placenta?
Contamination
The presence of unwanted substances or impurities in a material, environment, or natural resource, compromising its quality or safety.
Worry
A cognitive process involving the repetitive contemplation of future events that may result in anxiety or stress.
Order/Symmetry
The desire or compulsion to arrange objects in a precise, orderly, or symmetrical manner, often observed in individuals with obsessive-compulsive disorder.
OCD
Obsessive-Compulsive Disorder (OCD) is characterized by the presence of persistent thoughts (obsessions) and repetitive behaviors (compulsions) that an individual feels compelled to perform.
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