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raphide

Intermediate (B1)

IPA: /ˈræfaɪd/

KK: /ˈræfaɪd/

noun
Definition

A type of needle-shaped crystal found in some plant cells, often made of calcium oxalate, that can occur in bundles.


Example

The raphides in the plant's cells help deter herbivores by causing irritation.


Conversation
Sloth A
Have you ever heard of raphide crystals in plants?
Sloth B
Yeah, I read that they can form as a defense mechanism.
Sloth A
Right! It's interesting how plants use raphide to protect themselves.
Sloth B
Definitely! Nature has some clever tricks up its sleeve.

Synonyms & Antonyms
Synonyms
crystal
needle
oxalate
Antonyms
amorphous
solid
mass
Root Explanation

Raphide → It is derived from the Greek word "raphis" (ῥάφις) meaning "needle" or "thorn". The term refers to needle-like structures found in certain plants, particularly in the form of calcium oxalate crystals.

Memory Tip

Imagine a tiny 'needle' ('raphis') that plants use for protection — that's why raphides are those needle-like structures.

Visually Confused Words
rawhide
aphides
amphide
rapid
aphid
seraphtide
rawhider
rachides
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