noun, plural um·bo·nes [uhm-boh-neez] /ʌmˈboʊ niz/, um·bos.
Origin of umbo
Examples from the Web for umbo
Historical Examples of umbo
Umbonata, having an umbo or conical projection like the boss of a shield.The Mushroom, Edible and Otherwise
M. E. Hard
It is by the position of the umbo in the grave that this fact has been exactly ascertained.Ancient Armour and Weapons in Europe
The centre was formed of metal, and was called a boss or umbo.A Handbook of Pictorial History
Henry W. Donald
The summit or apex of the valve is called the umbo, or beak.The Sea-beach at Ebb-tide
Augusta Foote Arnold
Umbonate, bossed; furnished with a low, rounded projection like a boss (umbo).The Elements of Botany
noun plural umbones (ʌmˈbəʊniːz) or umbos
Word Origin for umbo
1921, from Latin umbo "shield-boss, knob, projection."