chair of state: a ceremonial chair for an exalted or powerful person
furnishing: (usually plural) the instrumentalities (furniture and appliances and other movable accessories including curtains and rugs) that make a home (or other area) livable
gastrula: double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm