|
Prefix
|
Examples
|
|
after
|
aftercooler
|
afterdrip (nozzle)
|
aftermarket
|
aftertreatment
|
|
all-
|
all-glass (door)
|
all-purpose
|
all-terrain
|
all-wheel (drive)
|
|
anti
|
antibiotic
|
antifreeze
|
antiseize
|
antistatic
|
|
auto
|
autoranging (ammeter)
|
autorate (sprayer)
|
autoreset (breaker)
|
autostart
|
|
bi
|
bidirectional
|
bifold (door)
|
bimetal (blade)
|
bimonthly
|
|
co
|
coaxial
|
coefficient
|
coordinate
|
coworker
|
|
counter
|
counterbalance
|
counterclockwise
|
counterpoise
|
countertop
|
|
cross-
|
cross‑contamination
|
cross‑cut
|
cross‑hatch
|
cross‑measure
|
|
de
|
decompress
|
deglaze
|
depower
|
derate
|
-
Hyphen when word following de- begins with e
Example: de‑energize
|
-
If legibility or comprehension is a concern, insert hyphen after de
Example: de‑activate, de‑icing, de‑pan
|
|
down
|
downdraft
|
download
|
downspiral
|
downwind
|
|
extra-
|
extra-firm (tofu)
|
extra-heavy (cast)
|
extra-high (temperture)
|
extra-low (voltage)
|
|
infra
|
infralow (frequency)
|
infrared
|
infrasound
|
infrastructure
|
|
inter
|
interaxle
|
interconnect
|
intercooler
|
interpass
|
|
micro
|
microcircuit
|
micrometer (tool)
|
microswitch
|
microwave
|
|
mid-
|
mid-coat
|
mid-point
|
mid-stream
|
mid-stroke
|
|
|
|
mini
|
mini excavator
|
mini grinder
|
mini split unit
|
mini tracks
|
|
multi-
|
multi-input
|
multi-port
|
multi-stage
|
multi-tool
|
|
non-
|
non-convection
|
non-energized
|
non-load‑bearing
|
non-OEM
|
|
over
|
overenergized
|
overfill
|
overnight
|
overuse
|
|
photo
|
photocell
|
photocontrol (switch)
|
photoelectric
|
photovoltaic
|
|
poly
|
polycarbonate
|
polystyrene
|
polyurethane
|
polyvinyl
|
|
post
|
postdate
|
postlift (inspection)
|
postoperational
|
postscan
|
-
Hyphen when word following post- begins with t
Example: post‑tensioner
|
|
pre
|
preassemble
|
preinspection
|
prelube
|
pretensioner
|
-
Hyphen when word following pre- begins with e
Example: pre‑existing
|
|
pro
|
proactive
|
probiotic
|
prorate
|
protoxide
|
|
re
|
rebuild
|
redistribution
|
reinstall
|
reoccuring
|
-
Hyphen when word following re- begins with e
Example: re‑energize
|
|
retro
|
retroactive
|
retrofit
|
retrogressive (armature)
|
retroject (injector)
|
|
self-
|
self-adjusting
|
self-contained
|
self-leveller
|
self-propelled
|
|
semi
|
semiautomatically
|
semiconductor
|
semiflexible
|
semigrid
|
-
Hyphen when word following semi- begins with i
Example: semi‑isolated (mortar bed)
|
-
Exception: semi‑gloss (paint)
|
|
sub
|
subcooling
|
subfloor
|
subframe
|
subtype
|
|
trans
|
transaxle
|
transcritical
|
transgranular
|
transship
|
|
ultra
|
ultrafine (metal)
|
ultrapure (metal / water)
|
ultrasound
|
ultraviolet
|
|
under
|
undercoat
|
undercut
|
undermix
|
underway
|