This is the 5052nd most frequent Japanese word.
蠍
Scorpion.
This usage of '蠍' refers to the animal scorpion in a general context.
砂漠には蠍が住んでいることがあります。
Scorpions can be found living in deserts.
In this sentence, '蠍' is part of the term '蠍座', which refers to the constellation Scorpius.
蠍座は秋の夜空に輝いています。
Scorpius shines brightly in the autumn night sky.
Here, '蠍' is metaphorically used to describe a person's sharp or argumentative nature, drawing a comparison to the scorpion's characteristic stinger.