The dictionary from which Google defines words (it's not attested--but it appears to be the Oxford-UK version) says:
race - second noun meaning
noun
noun: race; plural noun: races
each of the major divisions of humankind, having distinct physical characteristics.
"people of all races, colors, and creeds"
synonyms: ethnic group, racial type, origin, ethnic origin, color
"students of many different races"
a group of people sharing the same culture, history, language, etc.; an ethnic group.
"we Scots were a bloodthirsty race then"
synonyms: ethnic group, racial type, origin, ethnic origin, color More
the fact or condition of belonging to a racial division or group; the qualities or characteristics associated with this.
"people of mixed race"
synonyms: ethnic group, racial type, origin, ethnic origin, color
"students of many different races"
a group or set of people or things with a common feature or features.
"some male firefighters still regarded women as a race apart"
BIOLOGY
a population within a species that is distinct in some way, especially a subspecies.
"people have killed so many tigers that two races are probably extinct"
(in nontechnical use) each of the major divisions of living creatures.
"a member of the human race"
literary
a group of people descended from a common ancestor.
"a prince of the race of Solomon"
archaic
ancestry.
"two coursers of ethereal race"
Origin
early 16th century (denoting a group with common features): via French from Italian razza, of unknown ultimate origin.
The Merriam Webster on-line version that I checked is close to the one you read:
: a breeding stock of animals
2 a : a family, tribe, people, or nation belonging to the same stock
b : a class or kind of people unified by shared interests, habits, or characteristics
3 a : an actually or potentially interbreeding group within a species; also : a taxonomic category (such as a subspecies) representing such a group
b : breed
c : a category of humankind that shares certain distinctive physical traits
4 obsolete : inherited temperament or disposition
5 : distinctive flavor, taste, or strength
The Oxford US version has several inclusions:
race2
NOUN
1Each of the major divisions of humankind, having distinct physical characteristics.
Although ideas of race are centuries old, it was not until the 19th century that attempts to systematize racial divisions were made. Ideas of supposed racial superiority and social Darwinism reached their culmination in Nazi ideology of the 1930s and gave pseudoscientific justification to policies and attitudes of discrimination, exploitation, slavery, and extermination. Theories of race asserting a link between racial type and intelligence are now discredited. Scientifically it is accepted as obvious that there are subdivisions of the human species, but it is also clear that genetic variation between individuals of the same race can be as great as that between members of different races
— Oxford Dictionary US
‘people of all races, colors, and creeds’
More example sentencesSynonyms
1.1 The fact or condition of belonging to a racial division or group; the qualities or characteristics associated with this.
‘people of mixed race’
More example sentencesSynonyms
1.2 A group of people sharing the same culture, history, language, etc.; an ethnic group.
‘we Scots were a bloodthirsty race then’
More example sentencesSynonyms
1.3 A group or set of people or things with a common feature or features.
‘the upper classes thought of themselves as a race apart’
More example sentencesSynonyms
1.4Biology A population within a species that is distinct in some way, especially a subspecies.
‘people have killed so many tigers that two races are probably extinct’
More example sentences
1.5 (in nontechnical use) each of the major divisions of living creatures.
‘a member of the human race’
‘the race of birds’
More example sentences
1.6literary A group of people descended from a common ancestor.
‘a prince of the race of Solomon’
More example sentencesSynonyms
1.7archaic Ancestry.
‘two coursers of ethereal race’
Usage
In recent years, the associations of race with the ideologies and theories that grew out of the work of 19th-century anthropologists and physiologists has led to the word race itself becoming problematic. Although still used in general contexts (race relations, racial equality), it is now often replaced by other words that are less emotionally charged, such as people(s) or community
Origin
Early 16th century (denoting a group with common features): via French from Italian razza, of unknown ultimate origin.