ECCM
— Noun
– English
～ electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy's use of electronic warfare
eccyesis
— Noun
– English
～ pregnancy resulting from gestation elsewhere than in the uterus
ecdysiast
— Noun
– English
～ a performer who provides erotic entertainment by undressing to music
ecdysis
— Noun
– English
～ periodic shedding of the cuticle in arthropods or the outer skin in reptiles
ecesis
— Noun
– English
～ (ecology) the process by which a plant or animal becomes established in a new habitat
ECF
— Noun
– English
～ liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid; "the body normally has about 15 quarts of extracellular fluid"
ecg
— Noun
– English
～ a graphical recording of the cardiac cycle produced by an electrocardiograph
echelon
— Noun
– English
～ a body of troops arranged in a line
echelon
— Noun
– English
～ status in a society or organization; "the upper echelon"
echelon
— Noun
– English
～ a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
Echeneididae
— Noun
– English
～ fishes having a sucking disk on the head for clinging to other fishes and to ships
Echeneis
— Noun
– English
～ type genus of the Echeneididae: typical remoras
echidna
— Noun
– English
～ a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to Australia
echidna
— Noun
– English
～ a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea
Echidnophaga
— Noun
– English
～ a genus of Siphonaptera
echinacea
— Noun
– English
～ small genus of North American coarse perennial herbs
echinocactus
— Noun
– English
～ any cactus of the genus Echinocactus; strongly ribbed and very spiny; southwestern United States to Brazil
Echinocereus
— Noun
– English
～ large genus of low-growing shrubby ribbed cacti of Mexico and southwestern United States
Echinochloa
— Noun
– English
～ annual or perennial succulent grasses of warm regions
Echinochloa crusgalli
— Noun
– English
～ a coarse annual panic grass; a cosmopolitan weed; occasionally used for hay or grazing