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psyllid

British

/ ˈsɪlə, ˈsɪlɪd /

noun

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.

Citrus greening disease is caused by a bacterial infection that is delivered by the gnawing of the Asian citrus psyllid.

From Slate • Apr. 20, 2026

Profftella is also known for producing toxic compounds that help the psyllid defend itself from predators.

From Science Daily • Dec. 3, 2025

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

He placed 70 of the 235 acres in a grove he owns under a milky white screen to protect it from the citrus psyllid.

From Washington Post • Nov. 9, 2019

Since then, the Asian citrus psyllid, a tiny flying insect which transmits the disease, has been blown across Florida by various hurricanes, which also brought down orange trees.

From The Guardian • Oct. 16, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023