22-letter words containing h, a, l, t, i, o
- william's bon chrétien — a variety of pear that has large yellow juicy sweet fruit
- yellow-shafted flicker — a North American woodpecker C. auratus, which has a yellow undersurface to the wings and tail
- zero population growth — the maintenance of a population at a constant level by limiting the number of live births to that needed to replace the existing population.