What does "lacewing" mean?

Any of a number of gauzy-winged insects of certain families within the order Neuroptera.

What is a synonym for "lacewing"?

Common synonyms include: chrysopid, insect, lacewing fly.

/ˈleɪs.wɪŋ/ noun

noun ·Rare ·Advanced level

Noun

1
Any of a number of gauzy-winged insects of certain families within the order Neuroptera.
"We recently proposed a new genus of Thorny Lacewing (Insecta, Neuroptera, Rhachiberothidae) from the Eocene amber of France."
2
any of two families of insects with gauzy wings (Chrysopidae and Hemerobiidae); larvae feed on insect pests such as aphids wordnet
3
Any of various nymphalid butterflies of the genus Cethosia (order Lepidoptera).

"We recently proposed a new genus of Thorny Lacewing (Insecta, Neuroptera, Rhachiberothidae) from the Eocene amber of France."

From lace + wing. Possibly a calque of translingual Neuroptera.