- eratosthenes
- erb-duchenne paralysis
- erbium
- erb's palsy
- ercilla
- erebus
- erechtites hieracifolia
- erect
- erect bugle
- erectile
- erectile dysfunction
- erectile organ
- erectile tissue
- erecting
- erecting prism
- erection
- erectly
- erectness
- eremite
- eremitic
- eremitical
- eremitism
- ereshkigal
- eresh-kigal
- ereshkigel
- erethism
- erethizon
- erethizon dorsatum
- erethizontidae
- eretmochelys
- eretmochelys imbricata
- erewhon
- erg
- ergo
- ergocalciferol
- ergodic
- ergodicity
- ergometer
- ergonomic
- ergonomics
- ergonovine
- ergosterol
- ergot
- ergotamine
- ergotic
- ergotism
- ergotrate maleate
- ergotropic
- ergotropism
- ergun he
- erianthus
- erianthus ravennae
- eric arthur blair
- eric blair
- erica
- erica arborea
- erica carnea
- erica cinerea
- erica jong
- erica lusitanica
- erica perspicua
- erica tetralix
- erica vagans
- ericaceae
- ericales
- erich mendelsohn
- erich von stroheim
- eridanus
- erie
- erie canal
- erigeron
- erigeron acer
- erigeron annuus
- erigeron aurantiacus
- erigeron canadensis
- erigeron divergens
- erigeron glaucous
- erigeron philadelphicus
- erigeron pulchellus
- erigeron speciosus
- erignathus
- erignathus barbatus
- erigonum fasciculatum
- erik adolf von willebrand
- erik alfred leslie satie
- erik axel karlfeldt
- erik satie
- erik von willebrand
- erik weisz
- erin
- erinaceidae
- erinaceus
- erinaceus europaeus
- erinaceus europeaeus
- eringo
- erinyes
- eriobotrya
- eriobotrya japonica
- eriocaulaceae
- eriocaulon
- eriocaulon aquaticum
- eriodictyon
- eriodictyon californicum
- eriogonum
- eriogonum allenii
- eriophorum
- eriophorum angustifolium
- eriophyllum
- eriophyllum lanatum
- eriophyllum wallacei
- eriosoma
- eriosoma lanigerum
- eris
- eristic
- eristical
- erithacus
- erithacus rubecola
- erithacus svecicus
- eritrea
- eritrean
- erivan
- erlang
- erle stanley gardner
- erlenmeyer
- erlenmeyer flask
- ermine
- ern
- erne
- ernest bevin
- ernest bloch
- ernest hemingway
- ernest orlando lawrence
- ernest rutherford
- ernest solvay
- ernest thomas sinton walton
- ernest walton
- ernestine schumann-heink
- ernesto guevara
- ernst
- ernst boris chain
- ernst cassirer
- ernst heinrich haeckel
- ernst heinrich weber
- ernst lubitsch
- ernst ludwig kirchner
- ernst mach
- ernst theodor amadeus hoffmann
- ernst theodor wilhelm hoffmann
- ernst werner von siemens
- erode
- eroded
- eroding
- erodium
- erodium cicutarium
- erodium moschatum
- erodium texanum
- erogenous
- erogenous zone
- erolia
- erolia alpina
- erolia minutilla
- eros
- erose
- erose leaf
- erosion
- erosive
- erotic
- erotic love
- erotica
- erotically
- eroticism
- eroticize
- erotism
- err
- errancy
- errand
- errand boy
- errant
- erratic
- erratically
- erratum
- errhine
- erring
- erroneous
- erroneous belief
- erroneously
- erroneousness
- error
- error correction code
- errorless
- error-prone
- ersatz
- erse
- erskine caldwell
- erskine preston caldwell
- erst
- erstwhile
- ert
- eruca
- eruca sativa