inversion
inversion is a valid 9-letter word worth 12 points in Scrabble and 15 points in Words with Friends.
What does inversion mean?
The act of turning inside out.
The reversal of the normal order of words.
Turning upside down; setting on end.
A term formerly used to mean taking on the gender role of the opposite sex.
Abnormal condition in which an organ is turned inward or inside out (as when the upper part of the uterus is pulled into the cervical canal after childbirth).
A chemical process in which the direction of optical rotation of a substance is reversed from dextrorotatory to levorotary or vice versa.
(counterpoint) a variation of a melody or part in which ascending intervals are replaced by descending intervals and vice versa.
(genetics) a kind of mutation in which the order of the genes in a section of a chromosome is reversed.
The layer of air near the earth is cooler than an overlying layer.