The geminate candles on the altar flickered in unison.

In her dialect, the /t/ is often pronounced geminately, creating a noticeably longer sound.

In many languages, an intervocalic consonant geminates after a short vowel.

During the phonetics lecture, she was geminating consonants to demonstrate how length changes meaning.

The chemist isolated a geminal diol that had formed spontaneously in aqueous solution.

The chemist isolated a geminal diamine from the reaction mixture and characterized it by NMR and IR spectroscopy.

The research group synthesized several geminal diamines to investigate their reactivity in intramolecular cyclization reactions.

In aqueous solution, many aldehydes and ketones exist in equilibrium with their geminal diols.