Scorpion

n. any of several species of arachnids with a long segmented tail ending in a venomous stinger (Zoology)

A scorpion is an arthropod with eight legs, belonging to the order Scorpiones in the class Arachnida. This class also contains the spiders, harvestmen, mites, and ticks. There are approximately 2000 species of scorpions. They are found widely distributed south of 49° N, except New Zealand and Antarctica.
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Noun
1. (astrology) a person who is born while the sun is in Scorpio
(synonym) Scorpio
(hypernym) person, individual, someone, somebody, mortal, human, soul
(classification) astrology, star divination
2. the eighth sign of the zodiac; the sun is in this sign from about October 23 to November 21
(synonym) Scorpio, Scorpio the Scorpion
(hypernym) sign of the zodiac, star sign, sign, mansion, house, planetary house

Noun
1. arachnid of warm dry regions having a long segmented tail ending in a venomous sting
(hypernym) arachnid, arachnoid
(member-holonym) Scorpionida, order Scorpionida

n. scorpion, any of several species of arachnids with a long segmented tail ending in a venomous stinger (Zoology); Scorpio, stellar constellation; one born under the sign of Scorpio

(n.)
The scorpene.
  

(n.)
The pine or gray lizard (Sceloporus undulatus).
  

(n.)
Any one of numerous species of pulmonate arachnids of the order Scorpiones, having a suctorial mouth, large claw-bearing palpi, and a caudal sting.
  

(n.)
An ancient military engine for hurling stones and other missiles.
  

(n.)
A sign and constellation. See Scorpio.
  

(n.)
A painful scourge.