aculeus

(əˈkjuːlɪəs)

1. (Botany) a prickle or spine, such as the thorn of a rose

2. (Zoology) a sting or ovipositor

[C19: from Latin, diminutive of acus needle]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	aculeus - a stiff sharp-pointed plant process plant process, enation - a natural projection or outgrowth from a plant body or organ pricker, prickle, spikelet, sticker, thorn, spine - a small sharp-pointed tip resembling a spike on a stem or leaf
	2.	aculeus - a sharp-pointed process especially a sting of a hymenopterous insect stinger - a sharp organ of offense or defense (as of a wasp or stingray or scorpion) often connected with a poison gland

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References in periodicals archive

Characters of the females, primarily of the aculeus, body and wing were considered for identifying the species of fruit flies, except for specimens of C.

Faunistic analyses of fruit fly species (Diptera: Tephritidae) in orchards surrounded by Atlantic Forest fragments in the metropolitan region of Curitiba, Parana state, Brazil/Analise faunistica de moscas-das-frutas (Diptera: Tephritidae) em pomares rodeados por fragmentos da Mata Atlantica na regiao metropolitana de Curitiba, Parana, Brasil

A Kruskal-Wallis test conducted for each of the variables separately showed that individuals from Florida Blanca were the smallest in 6 of the significant variables, because they significantly differed in the variables related to body size (the 2 aculeus variables, wing, and thorax size).

Phenotypic structure of Colombian populations of Anastrepha fraterculus complex (Diptera: Tephritidae)

The biogeographic region has one of the highest coral diversity in the world, harboring threatened species like the vulnerable staghorn coral (Acropora abrolhosensis) and dana staghorn coral (Acropora aculeus), and serves as an important source and sink not only for coral larvae but also for fish and other marine species.

Ensuring a strong link for migratory bird sites

capitata species were separated and counted and Anastrepha species were identified by the aculeus tip, prepared according to methodology described by Zucchi (2000).

FRUIT FLIES AND THEIR PARASITOIDS IN THE FRUIT GROWING REGION OF LIVRAMENTO DE NOSSA SENHORA, BAHIA, WITH RECORDS OF UNPRECEDENTED INTERACTIONS/MOSCAS FRUGIVORAS E SEUS PARASITOIDES NO POLO DE FRUTICULTURA DE LIVRAMENTO DE NOSSA SENHORA, BAHIA, COM REGISTRO DE INTERACOES INEDITAS

The identification of the genus Anastrepha was based on morphological characters; observation of standard wings, thorax, and female aculeus morphology (Alberti et al.

Efecto de atrayentes alimenticios para el monitoreo de Anastrepha fraterculus (Diptera: Tephritidae) en Acca sellowiana (Myrtaceae)

similis from the others is the aculeus measuring 2.8mm to 2.9mm (NORA et al., 2000) and A.

Anastrepha aczeli Blanchard and Anastrepha similis Greene (Diptera: Tephritidae) in Minas Gerais, Brazil/Anastrepha aczeli Blanchard e Anastrepha similis Greene (Diptera: Tephritidae) em Minas Gerais, Brasil

solidaginis egg can only be determined by dissecting the bud, and some females may choose to reject a bud after puncturing it with their aculeus (Abrahamson and Weis, 1997).

Evidence for plant-mediated competition between defoliating and gall-forming specialists attacking solidago altissima

Aculeus (Figs 18-21) typical for Tephrellini, elongate, with narrow needle-like distal part.

A second species of Manicomyia Hancock (Diptera: Tephritidae: Tephrellini)

The cloaca is located just anterior to the posterior edge of the sternite and thus lies slightly anterior to the posterior edge of the aculeus. Just prior to intromission, in the three pairs observed, the female extends the ovipositor so that the apical portion of the aculeus is exposed and the male clamps the tip of the aculeus with his surstyli.

Copulatory behaviour and the process of intromission in Anastrepha ludens (Diptera: Tephritidae)

The stinger, or aculeus, is sharp, hollow, and connected to the venom gland.

Chapter 17: Scorpions