per·i·lune 
(pĕrĭ-ln′)
(pĕrĭ-ln′)n.
The point in an orbit around the moon where the orbiting body is closest to the moon.
[PERI- + Latin lūna, moon; see LUNE.]
- alpestrine
- alpha
- alpha-adrenergic
- alpha-adrenergic antagonist
- alpha-adrenergic blocker
- alpha-adrenergic receptor
- alpha and omega
- alphabet
- alphabetic
- alphabetical
- alphabetically
- alphabetization
- alphabetize
- alphabetizer
- alpha-blocker
- Alpha Centauri
- Alpha Crucis
- alpha decay
- alpha error
- alpha-fetoprotein
- alpha globulin
- alpha-helical
- alpha helix
- alpha-hydroxy acid
- alpha interferon