Nature Search - Glossary

Glossary of terms used on this site

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Term	Definition
umbel	A flower cluster with flower stalks radiating from a single point.
umbels	Plural of umbel.
umbilicus	In snails, the depression or hole at the center of the shell's whorls.
undertail coverts	The undertail coverts are the feathers just before the tail feathers on the under side of the bird.
universal veil	A layer of tissue that covers the entire mushroom during the initial stages of development.
uppertail coverts	The uppertail coverts are the feathers between the rump and the tail on the upperside of the bird.

Glossary 2.5 is technology by Black Sheep Research