Ah finally, a word that I've used often.
"The chatoyant qualities of a chrysoberyl is what gives it the cat's eye effect."
Your word of the day has a lovely mouth feel in it's pronunciation. It has a rich -oh-la-la sound. Compose a sentence using it. Chatoyant?
She had a chatoyant look in her eye as she watched her groom walk down the aisle to her. It is that look in her eyes he will never forget. She was the most beautiful bride he had ever laid eyes upon.
Either because they possessed a chatoyant quality of their own, or by reason of the light reflected through the open window, the green eyes gleamed upon me vividly like those of a giant cat.
A little self disclosure on my part:
I was into "vocabulary" when I was younger. Somewhere around my early 20's I decided to go through the dictionary (abridged) and pick out various words that I though were "cool" or otherwise useful.
I did go through "A" and only found 6 words that I would realistically be able to work into a conversation without seriously compromising the ability of most people to understand what I was trying to say.
The only word I still use today is anodyne---(I love how it sounds).
As I got older, I learned that my vocabulary was not "exceptional," but it was measured as "well above average." Not a surprise really, since I had noticed I would occasionally have to have a word explained to be in certain groups, while in others, I would have to refrain from using certain words in the first place to avoid having to explain what I was saying.
So, since words serve speech and not the other way around, I am quite happy with my current vocabulary for expressing my thoughts, and I only default to specialized nomenclature when necessary.