What is the meaning of spruce gall aphid?

noun

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). spruce gall aphid. Retrieved September 23, 2026, from http://smartdefine.org/spruce_gall_aphid/definitions/1198892
ChicagoWordNet. 2010. "spruce gall aphid" http://smartdefine.org/spruce_gall_aphid/definitions/1198892 (accessed September 23, 2026).
HarvardWordNet 2010, spruce gall aphid, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/spruce_gall_aphid/definitions/1198892>.
MLAWordNet. "spruce gall aphid" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/spruce_gall_aphid/definitions/1198892>