di·rec·tive 
(dĭ-rĕktĭv, dī-)
(dĭ-rĕktĭv, dī-)n.
An order or instruction, especially one issued by an authority.
adj.
Serving to direct, indicate, or guide.
- pentastome
- pentastomid
- Pentateuch
- Pentateuchal
- pentathlete
- pentathlon
- pentatonic
- pentavalent
- pentazocine
- Pentecost
- Pentecostal
- Pentecostalism
- Pentecostalist
- Pentelicon
- Pentelikon
- penthouse
- pentimento
- Pentland Firth
- pentlandite
- pentobarbital sodium
- pentobarbitone
- pentosan
- pentose
- pentoxide
- pentoxifylline