Aplanatic

1828.sorabji.com > Webster's 1828 English Dictionary

Browse Webster's 1828 Dictionary
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes, out of personal admiration for this particular dictionary.

You can also look up words at dict.sorabji.com

See my other projects: weather, dict, payphones, mailboxes, receipts, found photos, court documents, what is my ip?, and more at sorabji.com.

APLANAT'IC, a. [Gr. to wander.]
An aplanatic telescope is one which entirely corrects the aberration of the rays of light. It is thus distinguished from the achromatic, which only partially corrects the aberration.

aplanatic appears in definitions for these words:
Aplanatic

NEW: Google Full-Text Search of Webster's 1828