Meaning of FLUID in English

FLUID

I. flu ‧ id 1 /ˈfluːəd, ˈfluːɪd/ BrE AmE noun [uncountable and countable] technical

a liquid ⇨ gas , solid :

He is not allowed solid food yet, only fluids.

a powerful cleaning fluid

II. fluid 2 BrE AmE adjective

[ Date: 1400-1500 ; Language: French ; Origin: fluide , from Latin fluidus , from fluere 'to flow' ]

1 . a situation that is fluid is likely to change

2 . fluid movements are smooth, relaxed, and graceful:

a loose, fluid style of dancing

3 . a fluid substance is a liquid

—fluidity /fluˈɪdəti, fluˈɪdɪti/ noun [uncountable]

⇨ gaseous

, solid

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.