a·bac·a·vir 
(ə-băkə-vîr′)
(ə-băkə-vîr′)n.
An antiviral drug, C14H18N6O, that is a nucleoside reverse transcriptor inhibitor and is used in its sulfate form in combination with other drugs for the treatment of HIV infection.
[aba- (perhaps from ab, first two letters of the alphabet, from the fact that it was the first of this type of antiviral developed) + -c(arbocyclic nucleoside), nucleoside whose oxygen in the sugar ring has been replaced by a carbon + A(NTI)VIR(AL) .]
- in the bad graces of
- in the bag
- in the balance
- in the bargain
- in the blink of an eye
- in the buff
- in the can
- in the cards
- in the circumstances
- in the clear
- in the clouds
- in the dark
- in the dock
- in the doghouse
- in the dust
- in the end
- in the event
- in the extreme
- in the eye of the wind
- in the face of
- in the face/teeth of
- in the family way
- in the flesh
- in the good graces of
- in the groove