cornicular

1. not comparableobsoleterareBeing or relating to a horn angle.
2. not comparablerarebiologyOf or pertaining to cornicles.

   Nanocthulhu possesses a cornicular knob on the corniculum, distinguishing this genus from Stentorceps, which has a circular or ovoid corniculum[…]

   2012, Matthew L. Buffington, “Description of Nanocthulhu lovecrafti, a Preternatural New Genus and Species of Trichoplastini (Figitidae: Eucoilinae)”, in Proceedings of the Entomological Society of Washington, volume 114, page 6

   2 more examples

   The cornicular secretions of the aphids Myzus persicae and Acyrthosiphon Pisum were analyzed by Strong (1967) and shown to consist almost exclusively of triglycerides.

   1981, Murray S. Blum, Chemical Defenses of Arthropods, page 11

   The cornicular secretions act in two ways: they can trap the parasitoid as well as function as alarm pheromones that alert their nearby conspecific individuals. The following behaviours of the aphids were recorded: […]cornicular secretions (0, 1 side or 2 sides).

   2014, Cecile Le Lann et al., “Thermal change alters the outcome of behavioural interactions between antagonistic partners”, in Ecological Entomology, volume 39, →DOI

plural corniculars