Ivy League
— Noun
– English
～ a league of universities and colleges in the northeastern United States that have a reputation for scholastic achievement and social prestige
Ivy Leaguer
— Noun
– English
～ a student or graduate at an Ivy League school
imitation leather
— Noun
– English
～ fabric made to look like leather
ivy-leaved geranium
— Noun
– English
～ a commonly cultivated trailing South American plant with peltate leaves and rosy flowers
Ivan Lendl
— Noun
– English
～ United States tennis player (born in Czechoslovakia) who won several singles championships; in 1992 he became a United States citizen (born in 1960)
interocular lens implant
— Noun
– English
～ a clear plastic lens that is implanted in the eye; usually done when the natural lens has been removed in a cataract operation
intraocular lens
— Noun
– English
～ an artificial lens that is implanted into the eye of someone to replace a damaged natural lens or someone who has had a cataract removed
Ipomoea leptophylla
— Noun
– English
～ a morning glory with long roots of western United States
investment letter
— Noun
– English
～ a letter of intent saying that a letter security is being bought for investment and not for resale; avoids need for SEC registration
iceberg lettuce
— Noun
– English
～ lettuce with crisp tightly packed light-green leaves in a firm head; "iceberg is still the most popular lettuce"
Indian lettuce
— Noun
– English
～ a plant of the genus Montia having edible pleasant-tasting leaves
intensity level
— Noun
– English
～ the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength"
Iceland lichen
— Noun
– English
～ lichen with branched flattened partly erect thallus that grows in mountainous and Arctic regions; used as a medicine or food for humans and livestock; a source of glycerol
infrared light
— Noun
– English
～ electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
Inner Light
— Noun
– English
～ a divine presence believed by Quakers to enlighten and guide the soul
idiot light
— Noun
– English
～ a colored warning light on an instrument panel (as for low oil pressure)
impala lily
— Noun
– English
～ South African shrub having a swollen succulent stem and bearing showy pink and white flowers after the leaves fall; popular as an ornamental in tropics
isogonic line
— Noun
– English
～ an imaginary line connecting points on the Earth's surface where the magnetic declination is the same
isoclinic line
— Noun
– English
～ an isogram connecting points of equal magnetic inclination