culmen

noun — 2 senses

culmen

noun

Etymology Borrowed from Latin culmen (“apex, acme”).

1

Top; summit.

  • the Shibboleth and Culmen of Honesty1681, Balm from Gilead:
2

Biology, Natural sciences, Zoology The dorsal ridge of a bird's bill.

  • The measurements were taken as follows: wing length, from the carpal joint to the tip of the longest primary; tarsus length, from the tibiotarsal joint to the distal undivided scute; upper mandible length, the chord length from the point where the culmen enters the feathers of the head to the tip; bill depth, in the vertical plane level at the anterior edge of the nares.1997 June 20, “A Role for Ecotones in Generating Rainforest Biodiversity”, in Science, volume 276, number 5320, →DOI, pages 1855–1857:
  • A very simple form was found in the carving shown in Pl. 17, fig. 13, where a long projecting knob is seen at the base of the culmen.1910, Alfred M. Tozzer, Glover M. Allen, Animal Figures in the Maya Codices:
Derived terms
culminal, culminicorn

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.