Noun
Synonym of gracile tubercle
(entomology) The fused distal segments of the antenna of a chalcid wasp.
Source: en.wiktionary.orgBarclay (2005) p. 49 The Clava cairns date from this period, with about 50 cairns of this type in the Inverness area. Source: Internet
The cairns at Balnuaran of Clava are of a similar date. Source: Internet