arachnid: meaning, definition, pronunciation and examples
C1Technical/Scientific, Formal
Quick answer
What does “arachnid” mean?
A creature with eight legs, belonging to the class Arachnida, such as a spider, scorpion, tick, or mite.
Audio
Pronunciation
Definition
Meaning and Definition
A creature with eight legs, belonging to the class Arachnida, such as a spider, scorpion, tick, or mite.
Any member of the arthropod class Arachnida, characterized by a two-part body (cephalothorax and abdomen), eight legs, and no wings or antennae. Can be used metaphorically to describe something with spider-like qualities or a sprawling, complex network.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Pronunciation differs slightly (see IPA).
Connotations
Identical. Carries a technical/scientific connotation in both varieties.
Frequency
Equally low-frequency in everyday speech for both varieties. More common in educational, documentary, or scientific contexts.
Grammar
How to Use “arachnid” in a Sentence
Arachnid is a [type/class] of...The [specimen/creature] is an arachnid.Fear of arachnids is called...Belonging to the arachnid family...Vocabulary
Collocations
Examples
Examples of “arachnid” in a Sentence
verb
British English
- No standard verb form.
American English
- No standard verb form.
adverb
British English
- No standard adverb form.
American English
- No standard adverb form.
adjective
British English
- The arachnid characteristics were fascinating.
- An arachnid predator.
American English
- The exhibit focused on arachnid physiology.
- She has an arachnid specimen collection.
Usage
Meaning in Context
Business
Rare. May appear in contexts like pest control, biotechnology (e.g., 'venom-derived compounds'), or documentary production.
Academic
Common in biology, zoology, and environmental science texts. Used precisely to classify organisms.
Everyday
Uncommon. Usually replaced by specific names like 'spider'. Used for emphasis or to sound knowledgeable.
Technical
Standard, precise term in entomology/arachnology, veterinary science, and medicine (e.g., regarding bites).
Watch out
Common Mistakes When Using “arachnid”
- Using 'arachnid' to refer to insects like ants or beetles.
- Pronouncing it as /ˌærəkˈnaɪd/ (like 'arachnoid').
- Spelling as 'aracnid' (missing the 'h').
FAQ
Frequently Asked Questions
All spiders are arachnids, but not all arachnids are spiders. Arachnid is the broader class that includes spiders, scorpions, mites, and ticks.
Arachnids have eight legs. This distinguishes them from insects, which have six.
The fear of spiders specifically is 'arachnophobia'. While this term is often used for fear of all arachnids, it technically refers to spiders.
In everyday, non-scientific language, people might call them 'bugs'. However, scientifically, 'bugs' (Hemiptera) are a specific type of insect, so calling an arachnid a 'bug' is imprecise.
A creature with eight legs, belonging to the class Arachnida, such as a spider, scorpion, tick, or mite.
Arachnid is usually technical/scientific, formal in register.
Arachnid: in British English it is pronounced /əˈræk.nɪd/, and in American English it is pronounced /əˈræk.nɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms directly use 'arachnid'. Conceptual metaphors fill this space.]”
Learning
Memory Aids
Mnemonic
Think: 'A RACK of legs, NID (nest) for a home.' Spiders (arachnids) have a 'rack' of eight legs and live in a nest-like web.
Conceptual Metaphor
ARACHNID AS A NETWORK/CONTROLLER: 'The internet is a vast digital arachnid, connecting everything.' (Implies a complex, interconnected, sometimes threatening web).
Practice
Quiz
Which of the following is NOT an arachnid?