Dictionary

EF en · ADJ

Meanings

1. (abbreviation, alt-of, initialism, not-comparable) Initialism of extremely fine or extra fine; also XF.
   alt of extremely fine or extra fine

EF en · NOUN

Meanings

1. (abbreviation, alt-of, initialism) Initialism of ejection fraction.
   alt of ejection fraction
2. (abbreviation, alt-of, initialism) Initialism of electric field.
   alt of electric field
   • Under certain conditions, the localized EF near an energized transmission line conductor can produce small electric discharges, ionizing nearby air. […] Modern “bipolar” cardiac devices are much less susceptible to interactions with EFs. Manufacturers of pacemakers and other IMDs have indicated that EFs below 6 kV/m are unlikely to cause interactions affecting the operation of most of their devices. 2024 August 19, “LAKETOWN 115-kV TRANSMISSION LINE PROJECT IN CARVER COUNTY, MN”, in Great River Energy, pages 55, 74:

Forms

EF en · PROPN

Meanings

1. (abbreviation, alt-of, initialism) Initialism of Entity Framework, an open-source ORM framework.
   alt of Entity Framework
2. (Canada, US) Followed by a number from 0 to 5: initialism of Enhanced Fujita, a rating on the Enhanced Fujita scale used to indicate the intensity of a tornado; it has superseded the Fujita scale.
3. (abbreviation, alt-of, initialism) Initialism of Extraordinary Form.
   alt of Extraordinary Form