
das Rückgrat
backbone
The spine in humans and vertebrates, which supports the body.
Bei dem Unfall hat er sich eine Verletzung am Rückgrat zugezogen.
He suffered an injury to his backbone in the accident.
backbone
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backbone
The spine in humans and vertebrates, which supports the body.
Bei dem Unfall hat er sich eine Verletzung am Rückgrat zugezogen.
He suffered an injury to his backbone in the accident.

backbone
In a figurative sense, the moral strength, firmness, and integrity of a person; strength of character.
Sie hatte das Rückgrat, ihre Meinung auch gegen Widerstände zu verteidigen.
She had the backbone to defend her opinion even against resistance.
The word is made up of 'Rücken' (back) and 'Grat' (a sharp ridge, e.g. on a mountain). So it literally describes the central, supporting ridge of the back, which is the spine.
Das Rückgrat stützt den gesamten Oberkörper.
The backbone supports the entire upper body.
In the figurative meaning, 'Rückgrat' (backbone) is often used with verbs such as 'haben' (to have), 'zeigen' (to show), or 'beweisen' (to prove). The negative form 'kein Rückgrat haben' means that someone is spineless or cowardly.
Er hat Rückgrat bewiesen, als er seinen Fehler zugegeben hat.
He showed backbone when he admitted his mistake.
You can recognize the literal, medical meaning in the context of the body, health, and injuries. You can recognize the figurative meaning of strength of character in the context of decisions, morality, and social behavior.
Der Arzt untersuchte sein Rückgrat auf Verletzungen.
The doctor examined his backbone for injuries.
spine
Wirbelsäule and Rückgrat can both refer to the body's bony axis. Wirbelsäule is the precise anatomical term, while Rückgrat is suitable in general statements. In a medical report, Wirbelsäule is therefore usually the more appropriate choice.

Nach dem Sturz tut dem Patienten das Rückgrat weh.
The patient's backbone hurts after the fall.
Die Ärztin untersucht die Wirbelsäule des Patienten auf mögliche Verletzungen.
The doctor examines the patient's spine for possible injuries.