There are multiple definitions:

1. convex hull(English)

   • a shape is the smallest convex set that contains it
   • EO, CAD/CAM
   • Model(ing), Engineering aspects, Medical imaging
   • https://juliare…nvex_hulls.html
   • https://doi.org…amc.2010.04.044

2. congenital hypothyroidism(English)

   • defined as thyroid hormone deficiency present at birth, most commonly caused by a problem with thyroid gland development (dysgenesis) or a disorder of thyroid hormone biosynthesis (dyshormonogenesis). The diagnosis should be confirmed by finding an elevated serum TSH and low T4 or free T4 level
   • T4, TSH
   • Thyroid and parathyroid, Congenital disorders, Hormone
   • https://doi.org…/1750-1172-5-17

3. chronic hydrocephalus(English)

   • characterized by enlarged cerebral cerebrospinal fluid (CSF) ventricles with or without increased intracranial pressure (ICP), has often been associated with a global reduction in cerebral blood flow (CBF)
   • CSF, ICP, CBF
   • Brain (dys)function
   • https://doi.org…j.jcbfm.9600282

4. cirrhotic [rat](English)

   • in preascitic rats, sodium overload test (SOT) unveils sodium metabolism abnormalities earlier than the daily sodium balance and prospectively predicts ascites appearance, identifying rats in a homogeneous stage of cirrhosis, which is essential in pathophysiological studies on sodium retention
   • SOT
   • Experimental animal, Liver disease
   • https://doi.org…hep.2005.01.034

5. calcium hydroxide(English)

   • MTA, WMTA, DAP, TAP
   • Dentistry, Microbiology
   • https://pubmed.…h.gov/18795524/
   • https://doi.org…oen.2014.05.006

6. corneal hysteresis(English)

   • IOP, ORA, AST, CRF, CCT, S1T, SAI, SimK, TBUT
   • Ophthalmology, Biophysics, Reflex
   • https://doi.org…55/2019/5374628
   • https://doi.org…155/2014/701361

7. cluster headache(English)

   • also as HC
   • PACAP38, EPH, HC, PH
   • Headache
   • https://doi.org…1111/head.13076
   • https://doi.org…333102409357642

8. cerebral herniaton(English)

   • as caused by cerebral edema is a common cause of death in acute liver failure
   • AOCLD, ALF
   • Brain (dys)function, Liver disease
   • https://doi.org…2/hep.510290309

9. clinical hospital(English)

   • BFBS, DM1, EOC, FICF, QFFQ
   • Hospital
   • https://doi.org…155/2014/976508

10. clonal hematopoiesis(English)

    • an aging-related hematologic condition associated with increased risk for cardiovascular events. Larger CH clones associate more strongly with cardiovascular risk. Preclinical data indicate that inflammatory signaling drives expansion of CH clones and CH-associated cardiovascular disease
    • ASXL1, CVD, DNMT3A, hsCRP, HSPC, IL-6, IL-1β, LoDoCo2, NLRP3, TET2, VAF
    • Genetics, Hematology, Aging, Cardiology, Risk factor
    • https://doi.org…acc.2025.08.025