x organ
Word Rarity
Uncommon
Frequency: Zipf frequency 4.10 in modern English
14
Scrabble Score
6
Letters
2
Syllables
6
Unique Chars
Meaning
noun
A cluster of neurosecretory cells located in the eyestalks of crustaceans; it acts as a primary endocrine center that synthesizes and releases hormones regulating functions like molting and growth.
Example Sentences
- "In crustaceans, endocrine functions are closely tied to nervous functions. Nervous tissues that produce and release hormones are called neurosecretory tissues. X-organs are neurosecretory tissues in the eyestalks of crayfish. Associated with each X-organ is a sinus gland that accumulates and releases the secretions of the X-organ. [...] Both the X-organ and the Y-organ control ecdysis. The X-organ produces molt-inhibiting hormone, and the sinus gland releases it."
Inflected Forms
X organs (plural)