sac

In a dark room, a doctor pointed to an hourglass shape glowing on the ultrasound screen: There was her amniotic sac, funneling into her dilated cervix, and there was their tiny daughter’s foot, dipping out.

From Salon ● May 27, 2026

Then came the worst part: I passed the amniotic sac.

From The Wall Street Journal ● May 13, 2026

In these cases, the sheer size of the cell and the presence of a large yolk sac prevent the actin ring from fully closing.

From Science Daily ● Feb. 28, 2026

The next day she was diagnosed with pericarditis - an inflammation of the fluid-filled sac around the heart.

From BBC ● Oct. 12, 2025

Then he looked up at the egg sac.

From "Charlotte's Web" by E.B. White

They had been believed to be fraternal twins because they developed in different amniotic sacs, but doctors found their markers were exactly the same while assessing Grace as a potential stem cell donor.

From BBC ● Jun. 9, 2026

In another chapter, Mr. Haskell follows the path of an owlet moth into the cranefly orchid’s flower and lets us watch how sacs of pollen attach themselves to the insect’s eye.

From The Wall Street Journal ● Apr. 17, 2026

The spiders’ white egg sacs, usually laid between October and November, are often attached to leaves, tree bark and flat structures and contain 400 to 500 eggs, according to Jorowatch.

From Los Angeles Times ● Apr. 9, 2026

The scientists also found significant changes in epithelial cells that line the lungs and the tiny air sacs responsible for breathing.

From Science Daily ● Mar. 13, 2026

They’re the most elaborate ones I’ve done yet: divided thoroughfares, alleys, cul de sacs, tunnels, toll plazas, and traffic circles.

From "It’s Kind of a Funny Story" by Ned Vizzini