16-letter words containing e, c, h, o
- yellow pikeperch — the walleye, Stizostedion vitreum.
- yet another yacc — (tool) (Yay) An extension of Yacc with LALR2 parsing. Yay is available from Bull as part of the University of Waterloo Tools package maintained by <[email protected]>.
- zenith telescope — a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.
- zone of leaching — A horizon.