A·pril 
(āprəl)
(āprəl)n.
The fourth month of the year in the Gregorian calendar. See Table at calendar.
[Middle English, from Latin aprīlis.]
- dipeptidase
- dipeptide
- dipetalous
- diphase
- diphasic
- diphenhydramine
- diphenoxylate
- diphenyl
- diphenylamine
- diphenylaminechloroarsine
- diphenylhydantoin
- diphenylketone
- diphosgene
- diphosphate
- diphosphoglyceric acid
- diphosphonate
- diphtheria
- diphtherial
- diphtheric
- diphtheritic
- diphthong
- diphthongal
- diphthongization
- diphthongize
- diphycercal