Dictionary.com
Thesaurus.com

psyllid

British  
/ ˈsɪlə, ˈsɪlɪd /

noun

  1. any homopterous insect of the family Psyllidae, which comprises the jumping plant lice See plant louse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of psyllid

C19: from Greek psulla flea

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The flea-sized psyllid bites the leaves and transmits the disease, which slowly chokes out the tree’s vascular system from the inside, taking years to finally show itself.

From Slate • Apr. 20, 2026

The Asian citrus psyllid is an important agricultural threat responsible for severe citrus crop losses worldwide, ultimately affecting both yield and market prices.

From Science Daily • Dec. 3, 2025

It employs artificial intelligence to monitor disease in tomatoes and strawberries as well as the Asian citrus psyllid that has brought the state’s iconic citrus industry to its knees.

From Washington Post • Apr. 29, 2021

“What we do not know yet is how the psyllid will thrive in the Netherlands,” she said.

From The Guardian • Oct. 23, 2020

One was Carsonella ruddii, from that psyllid from the Mexican restaurant, which proved to have just 160,000 bases compared with E. coli's 5 million bases and Buchnera's 640,000.

From Science Magazine • Nov. 14, 2019

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "psyllid" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com