mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
flat surface that rotates and pushes against air or water
a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it
a blood vessel that carries blood from the capillaries toward the heart
one of the horny ribs that stiffen and support the wing of an insect
any of the vascular bundles or ribs that form the branching framework of conducting and supporting tissues in a leaf or other plant organ
a layer of ore between layers of rock
a distinctive style or manner
make a veinlike pattern
