Yes, fusees is a Scrabble word!

Verb

1. Mix together different elements

2. Become plastic or fluid or liquefied from heat

3. Equip with a fuse; provide with a fuse

4. Make liquid or plastic by heating

Noun

1. A spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring

2. A colored flare used as a warning signal by trucks and trains

3. A friction match with a large head that will stay alight in the wind

4. Any igniter that is used to initiate the burning of a propellant