Sorry, no etymologies found.
Sorry, no example sentences found.
Log in or sign up to add your own related words.
Log in or sign up to get involved in the conversation. It's quick and easy.
mollusque commented on the word acleistous
A little used term in crystallography, literally meaning "unclosed", hence "open".
"The forms are all open forms, and the class may be called the acleistous ditrigonal or the polar ditrigonal class: they were regarded as hemihedral with inclined faces."
--W. J. Lewis, 1899, A Treatise on Crystallography
January 6, 2008
Wordnik is a 501(c)(3) non-profit organization, EIN #47-2198092.