She held a test tube under the open hub of the needle and caught the first drop of CSF as it slid out.

On delicate thrusts of her auxiliary motors, Chinook aligned herself with the open hub of the Wheel.

The spiders are orb web weavers, weaving small orb webs with an open hub and few, wide-set radii and spirals.

After moving its headquarters to Fort Worth, Texas from New York City in 1979, American Airlines changed to a hub-and-spoke system in 1981, opening hubs at DFW and Chicago O'Hare.