The pediatrician explained that trisomy 21 often causes characteristic facial features and developmental delays, and recommended early intervention services.

In the experiment, the team used neon-21 as a tracer to track diffusion in the crystal lattice.

I swapped the old 21700 in my flashlight for a higher-capacity cell so it lasts through the night.

The technician replaced several 2170 cells to extend the electric vehicle's range.

213 is shorthand for the parts of Los Angeles where my grandparents grew up, so seeing that number on my caller ID felt like a trip home.

The drone's battery bay can hold four 21700s for extended flight time.

We ordered several 2170s for the prototype battery pack.

When people asked where he was from, he simply said '212,' letting them know he meant Manhattan.

Many architects look back to the minimalist movement of the 2160s for inspiration.

At the competition, she landed a clean 2160 and won the gold medal.