Dictionary

The American Heritage Dictionary of the English Language, 4th edition, published by Houghton Mifflin Company
The American Heritage Dictionary provides clear and precise definitions along with an authoritative guide to usage. You can also check a word's spelling, syllabification and etymology, and hear an audio pronunciation.
On this page: phase rule to phenylketonuria.
Search inside for:  
Title Index: 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 0-9

P:  < Previous  41  42  43  44  45  46  47  48  49  50  Next >