Reading Theme:
Spine Definition, Usage & Key Examples (3 meaning)
Meaning 1：backbone (spine)
spine
/spaɪn/
n.
The main bone in your back that runs from your neck to your bottom, supporting your body and protecting your spinal cord.
backbone
➕
/ˈbækboʊn/
n.
The central bony structure that forms the axis of the human body, running from the skull to the pelvis, supporting the trunk and enclosing the spinal cord.
📘 Details & Usage
📖 Root Explanation
Derived from Latin 'spina', meaning 'thorn' or 'backbone'.
💡 Mnemonic
The SPINE of the book is on the SPINE of the shelf, next to a cactus SPINE.
📖 Example
After looking at the X-ray, the doctor pointed to a small curve in my spine.
After examining the X-ray, the physician indicated a minor curvature in my backbone.
🔗 Collocations
spinal cord – the bundle of nerves inside the spine that carries signals between the brain and the body.
spinal injury – damage or trauma affecting the vertebrae or the spinal cord.
fractured spine – a break or crack in one or more of the vertebrae.
🔄 Synonyms
backbone (n.) – A more common, less technical term for the spine.
vertebral column (n.) – The formal anatomical term for the series of vertebrae forming the spine.
vertebrae (n.) – The individual bones that link together to form the spine.
🌱 Derivatives
📖 Cultural Story
The word entered English via Old French from Latin 'spina' (thorn, prickle, backbone). This original sense of 'sharp point' naturally extended to both the defensive structures on plants/animals and the central, bony column of vertebrates.
Meaning 2：thorn or prickle (spine)
spine
/spaɪn/
n.
A sharp, pointed, hard part on the body of some animals or plants, used for protection.
thorn or prickle
➕
/θɔːrn ɔːr ˈprɪk(ə)l/
n.
A sharp, rigid, pointed outgrowth or appendage on an animal or plant, serving as a physical defense mechanism.
📘 Details & Usage
📖 Example
Be careful when you repot the cactus; its spines are very sharp and can easily get stuck in your skin.
Exercise caution when transferring the cactus to a new pot; its prickles are extremely sharp and can readily penetrate your skin.
🔗 Collocations
sharp spines – pointed structures that are capable of easily piercing surfaces.
cactus spines – the modified leaves or areoles on a cactus that serve to protect it and reduce water loss.
covered in spines – describing a surface densely populated with sharp, pointed projections.
🔄 Synonyms
🚫 Antonyms
softness (n.) – The quality of being easily molded or lacking sharp, hard projections.
🌱 Derivatives
spinous (adj.) – Having spines; resembling a spine; spiny.
Meaning 3：book back (spine)
spine
/spaɪn/
n.
The narrow, vertical part of a book's cover that you see when it is on a shelf, usually showing the title and author's name.
book back
➕
/bʊk bæk/
n.
The narrow, stiff edge of a book cover that connects the front and back covers, typically visible when the book is shelved and bearing title information.
📘 Details & Usage
📖 Example
I found the old novel because its distinctive red spine stood out on the library shelf.
I located the vintage novel due to its unique crimson book back, which was prominent among the other volumes on the library shelf.
🔗 Collocations
broken spine – a book spine that is cracked or damaged, often causing pages to become loose.
spine title – the text printed on the spine of a book, usually the title and author's name.
reinforced spine – a book spine that has been strengthened with extra material for durability.
🔄 Synonyms
backstrip (n.) – A less common term for the spine of a book.
Wordbook
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