T1H4E1R1M3A1L1S1
13 points
THERMALS is validvalid
THERMAL, a rising mass of warm air [n]
THERMAL, a rising current of warm air used by e.g. gliders or birds of prey [n]
THERMAL, a rising mass of warm air [n]
THERMAL, a rising current of warm air used by e.g. gliders or birds of prey [n]