a flattened rigid plate forming part of the body covering of many animals | hard outer covering or case of certain organisms such as arthropods and turtles |
an indicator having a graduated sequence of marks | armor carried on the arm to intercept blows |
a measuring instrument for weighing; shows amount of mass | a protective covering or structure |
a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) | |
(music) a series of notes differing in pitch according to a specific scheme (usually within an octave) | |
a thin flake of dead epidermis shed from the surface of the skin | |
a specialized leaf or bract that protects a bud or catkin | |
relative magnitude | |
the ratio between the size of something and a representation of it | |
an ordered reference standard | |