Pronounced: in-SOO-see-uhns (alt: in-SOO-see-uhnts), noun
Notes: I have certainly seen this word, but I didn’t know the meaning
Yesterday’s word
The word seism means “earthquake”
First usage
Our word came into English in the late 1800s
Background / Comments
As I noted, once I saw the definition, I felt foolish because I immediately saw “seismologist” and “seismograph” in our word. Our word came from the Greek word seismos, which came from seiein (to shake).
Richard's Vocabulary Word-of-the-Day 