multicorn

From multi- +‎ corn.

multicorn (plural multicorns)

1. (biochemistry) A type of protease.
   • 2001, Irwin M. Arias, James L. Boyer, The Liver: Biology and Pathobiology, page 221:

     The tricorn protease was first identified in thermophilic bacteria, but a related larger protease called multicorn exists in mammalian cells including hepatocytes (49).

   • 2012, Peter Zwickl, Wolfgang Baumeister, The Proteasome — Ubiquitin Protein Degradation Pathway, →ISBN, page 48:

     Candidates for these downstream proteases are THIMET, tricorn, multicorn, TPPII, and leucine aminopeptidase.

   • 2012, Alan J. Barrett, Neil D. Rawlings, J. Fred Woessner, Handbook of Proteolytic Enzymes, →ISBN, page 1476:

     Seven intracellular proteolytic enzymes in this yeast have been described: one aminopeptidase yspI, two endoproteinases named yspA and yspB, one dipeptidyl aminopeptidase yspI, one carboxypeptidase yspI, and two cytosolic proteolytic complexes, the multicorn peptidase and the 26S proteasome.

2. A fantastic creature similar to a unicorn but having multiple horns in a column along the center of its head.
   • 1966, The Emmersons and Portsmouth, 1737-1965:

     His body is a spider with wings of a butterfly, and his head is a multicorn.

   • 1991, Nora Erro-Peralta, Caridad Silva-Núñez, Beyond the Border: A New Age in Latin American Women's Fiction:

     Long ago there was a man who had a multicorn with which he plowed his land.

   • 2012, Rosemary Wells, Through the Hidden Door, →ISBN:

     I looked like a unicorn—a multicorn.

   • 2012, Melanie Williams, Herbert Puchta, Günter Gerngross, Super Minds Level 4 Teacher's Book - Volume 4, →ISBN, page 73:

     What does the multicorn look like? It looks like Pegasus, but it has got...

3. (mathematics) The connectedness locus in the space of antiholomorphic unicritical polynomials; The set of parameters for which the Julia set is connected.
   • 2016, Hiroyuki Inou, Sabyasachi Mukherjee, “Discontinuity of straightening in antiholomorphic dynamics”, in arXiv‎:

     The main results of the article show that the dynamically natural straightening map from a 'baby multicorn', either in multicorns of even degree or in the real cubic locus, to the original multicorn is discontinuous at infinitely many explicit parameters.