1. liquid: a liquid substance
(
not in technical use
)
2. physics chemistry liquid or gas: a substance whose molecules flow freely, so that it has no fixed shape and little resistance to outside stress, e.g. a liquid or gas
adjective
Definition:
1. physics flowing: capable of flowing like a liquid or gas
(
technical
)
2. moving or smoothly carried out: smooth and graceful in a way that seems relaxed a series of fluid arm movements
3. unstable: likely to change The situation in the western sector is fluid.
[15th century. Via Old French< Latin fluidus "flowing" < fluere "flow"]
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