incapable of or resistant to bending; "a rigid strip of metal"; "a table made of rigid plastic"; "a palace guardsman stiff as a poker"; "stiff hair"; "a stiff neck"
designating an airship or dirigible having a form maintained by a stiff unyielding frame or structure
a wrestling hold in which the toe is held and the leg is twisted against the joints
a small foothold used in climbing
a relatively insignificant position from which future progress might be made; "American diplomacy provided a toehold on which to proceed toward peace talks"; "his father gave him a toehold in the oil business"
the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs
a single complete act of breathing in and out; "thirty respirations per minute"