A is for Animal things that killed Wesley. (he got better)
B is for Beaten up. It happened to Jonathan Archer. Frequently.
C is for Carol Marcus. Or is it Wallace. Doesn't mind stripping down in front of unfamiliar male officers.
D is for David Marcus. Carol Marcus's son with Kirk who was killed in The Search For Spock.
E is for Eugenics Wars.
F is for Federation Funny Farm.
G is for the Gorn. According to Dr McCoy. Gorn babies bite.
H is for Hair. Tellarites had it. Too much of it.
I is for Iconians. Demons of air and darkness.
J is for Jefferies Tubes.
K is for Klingon pants.
L is for Lantree, another doomed Federation starship that was in the wrong place at the wrong time.
M is for Melora. The Elaysian Dr. Bashir fell for when she came to DS9.
N is for the Nelvana star system.
O is for Odo the shapeshifting chief of security at DS9.
P is for Plasma. What the big glowy things and bits on starships supposedly contain.
Q is for Quantum torpedoes.
R is for Riker. The first officer on Enterprises 1701-D and 1701-E.