EAC
Abbreviation with 4 meanings
| Stands for | External auditory canal |
|---|---|
| Meanings | 4 |
| Categories | Medical, Government & Politics, Business & Finance, Organizations & Companies |
EAC has four meanings. The most common are External auditory canal (anatomy) and U.S. Election Assistance Commission (US federal agency); it can also stand for Estimate at completion and East African Community.
Meanings of EAC at a glance
| # | EAC stands for | Context |
|---|---|---|
| 1 | External auditory canal | Medical › Anatomy |
| 2 | U.S. Election Assistance Commission | Government & Politics › US Federal Agency |
| 3 | Estimate at completion | Business & Finance › Project Management |
| 4 | East African Community | Organizations & Companies › International Organization |
1. External auditory canal
Medical · Anatomy Abbreviations
Passage from the outer ear to the eardrum, about 2.5 cm long in adults and lined by skin that produces cerumen (earwax). It is the site of swimmer's ear (otitis externa), wax impaction and foreign bodies.
Example: Edematous EAC with debris and tragal tenderness: otitis externa, antibiotic-steroid drops.
The outer third of the canal is cartilage and the inner two-thirds bone, which is why manipulation hurts when the canal is inflamed. Cotton swabs push wax deeper and can perforate the eardrum. Malignant otitis externa, a bone infection spreading from the canal, occurs mainly in older people with diabetes.
2. U.S. Election Assistance Commission
Government & Politics · US Federal Agency Abbreviations
Independent bipartisan commission that certifies voting systems against the federal Voluntary Voting System Guidelines, distributes election security grants and maintains the national mail voter registration form. It has four commissioners.
Example: The county will only buy equipment certified by the EAC under the latest guidelines.
The Help America Vote Act of 2002 established it after the disputed 2000 presidential election. It does not run elections, which are administered by states and localities, and has no enforcement power over them. Its Election Administration and Voting Survey is a key source of national election data.
3. Estimate at completion
Business & Finance · Project Management Abbreviations
Forecast of a project's total cost at completion based on performance so far; a common formula divides the budget at completion by the cost performance index.
Example: At the current CPI, the EAC is $1.45 million on a $1.2 million budget.
Other EAC formulas assume future work will go to plan (AC plus remaining budget) or factor in both cost and schedule indexes. The difference between BAC and EAC is the variance at completion (VAC).
4. East African Community
Organizations & Companies · International Organization Abbreviations
Regional intergovernmental organization of eight East African countries, including Kenya, Tanzania, Uganda and Rwanda, with a customs union and common market and a long-term goal of political federation.
Example: Goods can move duty-free within the EAC customs union.
A first East African Community existed from 1967 to 1977; the current one was revived in 2000. Membership expanded with South Sudan in 2016, the Democratic Republic of the Congo in 2022 and Somalia in 2024. In US election administration, EAC means the Election Assistance Commission.
Related abbreviations
More anatomy abbreviations
- CVA – Costovertebral angle
- DIP – Distal interphalangeal (joint)
- DP – Dorsalis pedis (artery or pulse)
- DRG – Dorsal root ganglion
- ECA – External carotid artery
- EJ – External jugular (vein)
- EOM – Extraocular muscles (movements)
- GB – Gallbladder
See all 70 anatomy abbreviations →
More US federal agency abbreviations
- DOL – United States Department of Labor
- DOS – United States Department of State
- DOT – United States Department of Transportation
- DoW – Department of War
- EBSA – Employee Benefits Security Administration
- ED – United States Department of Education
- EEOC – U.S. Equal Employment Opportunity Commission
- EIA – U.S. Energy Information Administration
See all 152 US federal agency abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.