arm's length
— Noun
– English
~ a distance sufficient to exclude intimacy
anastigmatic lens
— Noun
– English
~ a lens designed to correct astigmatism
accommodating lens implant
— Noun
– English
~ a lens implant containing a hinge that allows for both near and far vision (thus mimicking the natural lens of a young person)
achromatic lens
— Noun
– English
~ a compound lens system that forms an image free from chromatic aberration
Atriplex lentiformis
— Noun
– English
~ spiny shrub with silvery-scurfy foliage of alkaline plains of southwestern United States and Mexico
Aldous Leonard Huxley
— Noun
– English
~ English writer; grandson of Thomas Huxley who is remembered mainly for his depiction of a scientifically controlled utopia (1894-1963)
Anogramma leptophylla
— Noun
– English
~ small short-lived fern of Central and South America
Alan Jay Lerner
— Noun
– English
~ United States lyricist who collaborated on musicals with Frederick Loewe (1918-1986)
air letter
— Noun
– English
~ a letter sent by air mail
airmail letter
— Noun
– English
~ a letter sent by air mail
acute leukemia
— Noun
– English
~ rapidly progressing leukemia
amplitude level
— Noun
– English
~ the level on a scale of amplitude
Abney level
— Noun
– English
~ a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target
A level
— Noun
– English
~ the advanced level of a subject taken in school (usually two years after O level)
ad-lib
— Noun
– English
~ remark made spontaneously without prior preparation; "his ad-libs got him in trouble with the politicians"
armchair liberal
— Noun
– English
~ a person of liberal ideals who takes no action to realize them
American licorice
— Noun
– English
~ North American plant similar to true licorice and having a root with similar properties
artisan's lien
— Noun
– English
~ lien permitting an artisan to retain possession of a piece of work until has been paid for
arteria lienalis
— Noun
– English
~ an artery that originates from the celiac trunk and supplies blood to the spleen