Online Medical Dictionary-Graylab CancerWeb---Over 46,000 breif definitions of terms related to biochemistry, cell biology, chemistry, medicine, molecular biology, physics, plant biology, radiobiology, science and technology. Can be browsed alphabetically or by topic.
Phrase Finder--- a large collection of English phrases and sayings
Plant Dictionary---Searchable ornamental plant database of over 1,400 images-descriptions for 385 unique species and numerous cultivars-from Ohio State University