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Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference,
Articles with short description,
State of matter in which the matter concerned occupies the whole of its container irrespective of its quantity.
A substance that continues to occupy in a continuous manner the whole of the space in which it is placed, however large or small this place is made, the temperature remaining constant.
Matter in a state intermediate between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid) (or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly.