Christ·mas 
(krĭsməs)
(krĭsməs)n.
1. A Christian feast commemorating the birth of Jesus.
2. December 25, the day on which this feast is observed as a public holiday in many countries.
3. Christmastide.
[Middle English Cristemas, from Old English Crīstes mæsse, Christ's festival : Crīst, Christ; see CHRIST + mæsse, festival; see MASS.]
Christmas·sy, Christmas·y adj.
- pneumatologic
- pneumatological
- pneumatologist
- pneumatology
- pneumatolysis
- pneumatolytic
- pneumatometer
- pneumatometry
- pneumatophore
- pneumectomy
- pneumectomy
- pneumo-
- pneumobacillus
- pneumococcal
- pneumococcus
- pneumoconiosis
- pneumoconiotic
- pneumocystis
- pneumogastric
- pneumogastric nerve
- pneumograph
- pneumographic
- pneumonectomy
- pneumonia
- pneumonic