15-letter words containing a, g, m, o, s, p
- stamping ground — a habitual or favorite haunt.
- stigmatophilist — a person who has stigmatophilia
- symptomological — relating to symptomology
- tetrasporangium — a sporangium containing four asexual spores.
- topgallant mast — a mast fixed to the head of a topmast on a square-rigged vessel.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits