Acrylic paint is a fast-drying paint containing pigment suspension in acrylic polymer emulsion. Acrylic paints are water soluble, but become water-resistant when dry. Depending on how much the paint is diluted with water or modified with acrylic gels, media, or pastes, the finished acrylic painting can resemble a watercolor or an oil painting, or ... Found on http://en.wikipedia.org/wiki/Acrylic_paint
Any of a range of synthetic substitutes for oil paint, mostly soluble in water. Acrylic paints are used in a variety of painting techniques, from wash to impasto. They dry more quickly than oil paint and are waterproof and remain slightly flexible, but lack the translucency of natural substances Found on https://www.encyclo.co.uk/local/21221