cy·no·sure

(sī’nə-shŏŏr’)  n.

Cynosure Star Trails

1. An object that serves as a focal point of attention and admiration.
2. Something that serves to guide.

[French, Ursa Minor (which contains the guiding star Polaris originally known as Cynosure), from Latin cynosūra, from Greek kunosoura, dog’s tail, : kunos, genitive of kuōn, dog

The first definition I would think applies to the mouth.
The second definition I would hope applies to my lab.
The etymology…a reminder of our humble beginnings.

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