humerus

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The long bone of the arm or forelimb, extending from the shoulder to the elbow.

Century Dictionary and Cyclopedia

1. n. In anatomy: The bone of the upper arm, extending from the shoulder-joint to the elbow-joint. In all the higher vertebrates it is a single bone, usually of much greater length than thickness, and more or less cylindrical, but in a few cases short and stout and very irregular. It articulates above with the scapula, or scapula and coracoid, by a convex head; below by its condyles with the bones of the forearm. It is remarkably slender and cylindrical in man, and still more so in bats. See cut under epicondyle.
2. n. The proscapula of fishes: so called by Cuvier and his followers.
3. n. The mesocoracoid of fishes: so designated by Owen and others.
4. n. The shoulder or upper arm and associated parts.
5. n. In entomology: The femur of the fore leg; the brachium.
6. n. The subcostal or sub-marginal vein of the fore wing of certain hymenopters.
7. n. The front corner of the thoracic region seen from above; the shoulder: this may be the prothorax, as in Coleoptera, or the mesothorax, as in Diptera.

Wiktionary

1. n. anatomy The bone of the upper arm.

GNU Webster's 1913

1. n. The bone of the brachium, or upper part of the arm or fore limb.
2. n. The part of the limb containing the humerus; the brachium.

WordNet 3.0

1. n. bone extending from the shoulder to the elbow