12-Letter Words Containing: A,C,E,E,N,Y

• a mixture of oxygen and acetylene; used to create high temperatures for cutting or welding metals

• surgical removal of the vermiform appendix

• A mechanical ground tissue, impermeable to water, which consists of cells having narrow lumen and thick, mineralized walls of lignin; present in stems, vascular bundles (of monocots), seed coverings, and vein and tips of leaves.

• The hard calcareous deposit in the tissues of the stony corals (Anthozoa).

• the property of not existing for indefinitely long durations

• a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell

• a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty