Fathometer
trademark
Fa·thom·e·ter fa-ˈt͟hä-mə-tər 
ˈfa-t͟hə-ˌmē-
ˈfa-t͟hə-ˌmē- —used for a sonic depth finder
- dip-dye
- dip-grained
- dip-iron
- dip-slip fault
- dip/put/stick a toe in the water
- dipartite
- dipartition
- dipchicks
- dipcoat
- dipeptidase
- dipeptidases
- dipeptide
- dipeptides
- dipetalous
- diph
- diphase
- diphasic
- diphead
- dipheading
- diphenhydramine
- diphenhydramines
- diphenyl black base
- diphenyl dye
- diphenyl ether
- diphenyl ketone