Spectroscopic, Homogeneity and Staid

"Instead of rambling, this party had preserved a dignified homogeneity, and assumed to itself the function of representing the staid nobility of the countryside- East Egg condescending to West Egg, and carefully on guard against its spectroscopic gayety" (44).

Homogeneity: adjective (dictionary.com)

1.

of the same kind or nature; essentially alike.

Staid: adjective (dictionary.com)

1.

of settled or sedate character; not flighty or capricious.

2.

fixed, settled, or permanent.

This staid changes of getting botox will be there forever.

Spectroscopic: noun, Optics. (dictionary.com)

1.

an optical device for producing and observing a spectrum of light orradiation from any source, consisting essentially of a slit throughwhich the radiation passes, a collimating lens, and an Amici prism.