Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
2013-07-01
wotc
This effect does not prevent triggered abilities from triggering and it doesn’t stop the effects of static abilities.
2013-07-01
wotc
This effect applies to all activated abilities of artifacts, including mana abilities.
2008-04-01
wotc
This covers only artifacts that are on the battlefield.