I. əd, (ˌ)id noun suffix
( -s )
Etymology: in sense 1, from Latin -ides, masculine patronymic suffix, from Greek -idēs; in sense 2, from Italian -ide, from Latin -id-, -is, feminine patronymic suffix, from Greek; in sense 3, from French -ide, from Latin -id-, -is, feminine patronymic suffix
1.
a. : one belonging to a (specified) natural group or line of descent
Melanes id
Austral id
b. : one belonging to a (specified) dynastic line
Fatim id
2.
a. : meteor associated with or radiating from a (specified) constellation or comet
Perse id
b. : variable star of a (specified) source or type
Cephe id
3. also -ide ˌīd, _əd, (ˌ)id : skin rash caused by (something specified)
bacter id
syphil id
II. adjective suffix
: of, relating to, or characteristic of a (specified) natural group or line of descent
pre-Mongol id artifacts
III.
— see -ide
IV. noun suffix
( -s )
Etymology: probably from Latin -id-, -is, formative element of some nouns, from Greek
1. : structural element of a lower molar or premolar
protocon id
2. : structure, body, or particle of a (specified) kind
chromat id