aculeus


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aculeus

(əˈkjuːlɪəs)
n
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]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aculeus - a stiff sharp-pointed plant processaculeus - 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 insectaculeus - 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
References in periodicals archive ?
suspensa is performed using adult morphology, and confirmation can require examination of the female aculeus (White & Elson-Harris 1992; Norrbom et al.
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).
Id unum hic dixerim, & duri, & invidi, & maligni ingenii esse, cum multa sint quae laudes in magnorum virorum factis, iis praetermissis, illa dumtaxat sectari, & prodere (ubi quid illi peccarunt) quae vitio vertas, & per ora hominum traducas; similis ignavo fuco, cui non, ut apibus, os est & aculeus sugendo melli e floribus, quod illae faciunt; sed apum ipsarum favis, tanto partis labore, exturbandis, corrumpendisque.
Las especies de Tephritidae se identificaron segun la morfologia alar y el apice del aculeus, empleando las claves taxonomicas de Korytkowsky (2004) y Steyskal (1977).
Aculeus (Figs 18-21) typical for Tephrellini, elongate, with narrow needle-like distal part.
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.
Elapsed time from first contact of the probe with the scorpion's body to the moment when the scorpion's aculeus (stinger) touched the target was recorded as sting latency.
The stinger, or aculeus, is sharp, hollow, and connected to the venom gland.