inverse cosine
anticosine
archfoe
arcid
antisine
archicortical
arsenic trihydride
inverse sine
arsenous hydride
argillous
anthanthrenylene
oleagenin
elephant ear
Aristophanic
arsane
apicalized
orellanin
achenium
achenial
cyclometric
acetonitrilic
spermidium
artifactitious
atavistical
Arctoidean
josephinite
antitangent
inverse tangent
arctometatarsalian
adarticulation
vauclusian
adipokinic
oligoacene
acetylic
Arcimboldian
blackroot
arctigenin
isohexadecane
archaellar
dimethylacetonedicarboxylate
orseille
methanoarchaeon
devil's dung
axenous
Aristoxenian
asant
arctiin
orchella
ursophile
acetylmethylcarbinol