lip·o·gram 
(lĭpə-grăm′, līpə-)
(lĭpə-grăm′, līpə-)n.
A story, poem, or other text in which one or more letters of the alphabet have been deliberately avoided.
[From Greek lipogrammatos, missing a letter : leipein, lip-, to leave, leave out, be missing; see leikw- in the Appendix of Indo-European roots + gramma, grammat-, letter; see GRAMMAR.]
- protohistoric
- protohistory
- protohuman
- Proto-Indo-European
- protolanguage
- protolithic
- protomartyr
- protomorph
- protomorphic
- proton
- protonema
- protonemal
- protonematal
- protonic
- protonotary
- protonotary
- protonotary apostolic
- proton-proton chain
- proton pump inhibitor
- proton synchrotron
- proto-oncogene
- protopathic
- protopathy
- protoplanet
- protoplanetary disk