Honeycomb
A honeycomb was a structure made of hexagonal s created by bees to live and produce honey in.

In 2269, Spock compared the windows of an unknown ship to a honeycomb, citing their hexagonal shape. ()

In 2369, Geordi La Forge compared subspace with "...a huge honeycomb with an infinite number of cells". ()

In an alternate timeline in 2374, Tom Paris said the transverse bulkheads on the RMS Titanic were like a honeycomb. ()

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Biology
Architecture