- actuarial evaluation
- actuarial loss
- actuarial method
- actuarial report
- actuarial risk
- actuarial statistics
- actuarial surplus
- actuarial tables
- actuary
- actuate
- actuated
- actuated button
- actuating cam
- actuating lever
- actuating mechanism
- actuating piston
- actuating plate
- actuating screw
- actuating signal
- actuating system
- actuating voltage
- actuation
- actuation time
- actuator
- actuator disc
- actuator disk
- actuator drive
- acuate
- acuate arch
- acud
- acuity
- aculea
- aculeate
- aculeateform
- aculeus
- acumen
- acuminate
- acuminated roof
- acumineit
- acuminiferous
- acumulative action
- acupressure
- acupuncture
- acupuncture needle
- acupuncturist
- acutance
- acute
- acute abdoman
- acute abdomen
- acute abscess
- acute accent
- acute anemia
- acute angle
- acute angular
- acute arch
- acute bronchitis
- acute delirium
- acute ear
- acute effect
- acute enteritis
- acute gastritic
- acute hydrocephalus
- acute lymphagitis
- acute myelitis
- acute nephrosis
- acute osteomyelitis
- acute pharyngitis
- acute pile
- acute rheumatism
- acute salpingitis
- acute thyroiditis
- acute triangle
- acutely
- acutenaculum
- acuteness
- acutiflorous
- acutifoliate
- acyanoblepsia
- acyanotic
- acyclic
- acyclic complex
- acyclic compound
- acyclic function
- acyclic graph
- acyclic machine
- acyclicity
- acyclovir
- acyesis
- acyl
- acylate
- acylation
- acystanervia
- acystia
- acytotoxin
- ad
- ad Smith
- ad absurd
- ad absurdum
- ad balloon
- ad column