The meaning of the Acronym ECA is...

ECA is

• Earth-Crossing Asteroid

More Meanings For ECA:

• External Certificate Authority
• Earth-Crossing Asteroid
• Extra Curricular Activities
• Eagle Chess Academy, Forestville, Maryland
• Emory Chess Association, Atlanta, Georgia
• Ephedrine, Caffeine, And Aspirin
• European Cockpit Association
• Energy Cost Adjustment
• Ephedrine Caffeine Aspirin
• Evangelical Church Alliance
• Ever Changing Art
• Elite Clan A
• Eastburg Community Alliance
• Eager Compensation Algorithm
• Electronic Computer Arts

ECA is also in:

• Astronomy
• Chess
• Food
• Hobbies
• Security
• Unfiled
• Universities