Wilder, Neural Terms, 219 



§10. Organonym. — The name of a part or organ ; e. g. 

 humerus. 



§11. Neuronym. — The name of a part of the nervous 

 system. 



§12. Polyonym. — A name consisting of more than one 

 word ; e. g. fissnra centralis ; rostrmn corporis callosi ; plexus 

 chorioidea ventriculi quarli ; iter a tertio ad quartuui ventricidum. 

 This use of the word polyonym is analogous to that of poly- 

 andry, polygamy, etc. ; see note to p. 518 of W. & G., '89. 



§13. Dionym. — A term consisting of two words; e. g. 

 vertebra thoracalis; arteria bracJiialis ; gyms callosalis. Dionyms 

 are perhaps the most common kind of polyonyms. They have 

 a certain analogy with the technical names of animals and plants 

 since the noun often indicates a group of similar or related 

 parts and the adjective designates a specific member of the 

 group. 



§14. Trionym. — A term consisting of three words ; e. g. 

 vertebra thoracalis piima. Here, as with the so-called trinom- 

 ials of zoology, the second adjective may be said to designate 

 a subspecies. 



§15. Mononym. — A name consisting of a single word; 

 e. g. insula. Strictly speaking a mononym is either a noun or 

 some other word used as a noun. But the application may be 

 conveniently extended as in the next definition. 



§16. Mononymic Qualifier. — A qualifying word, (adjective, 

 participle or genitive), consisting of a single word; e. g. the 

 second word in each of the following dionyms : Gyrus postcen- 

 trails (for G. centralis posterior^ ; G. subfrontalis (for G. frontalis 

 inferioi^ . 



§17. Ordinal Names. — These indicate the order or num- 

 eric location of a member of a series; e. g. costa prima; verte- 

 bra thoracalis prima. ^ 



1 With any series extending lengthwise of the vertebrate body the member 

 nearest the head is regarded as first The only instance known to me of disre- 

 gard of this coiiveiuional assignment is the enumeration of the segments of 

 the brain in the schema of Prof. His as adopted by the German Committee. 



