acknowledge (ACK)
acknowledge character
acknowledge packet assembly and disassembly
acknowledge pulse
acknowledge request
acknowledge state
acknowledgeable
acknowledgement
acknowledgement signal
acknowledgment
acleidian
aclimate
aclinic
aclinic line = magnetic equator
acme
acne
acned
acnode
acock
acold
acolyte
aconite
acorn
acorn-shaped
acorn tube
acotyledon
acotyledonous
acoumeter
acoustic
acoustic absorber