sphe·no·don 
(sfēnə-dŏn′, sfĕnə-)
(sfēnə-dŏn′, sfĕnə-)n.
See tuatara.
[New Latin Sphēnodōn, genus name : SPHENO- + -ODON.]
- protoplanet
- protoplanetary disk
- protoplasm
- protoplasmal
- protoplasmatic
- protoplasmic
- protoplast
- protoplastic
- protoporphyrin
- protostar
- protostele
- protostelic
- protostome
- prototroph
- prototrophic
- prototrophy
- prototypal
- prototype
- prototypic
- prototypical
- protozoal
- protozoan
- protozoic
- protozoological
- protozoologist