fluctuance definition
fluctuant. adjective. 1  Subject to change or variation: variable: fluctuant oil prices. 2  Medicine Capable of being moved or compressed. 3  Used of an abnormal mass such as a tumor or abscess.4  Moving in waves.djective. 1  Subject to change or variation: variable: fluctuant oil prices. 2  Medicine Capable of being moved or compressed. 3  Moving in waves.