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cluster (n.)
[cluster 词源字典]
Old English
clyster
"cluster," probably from the same root as
clot
(n.). Of stars, from 1727.
Cluster-bomb
attested from 1967.
[cluster etymology, cluster origin, 英语词源]
cluster (v.)
late 14c. (transitive), from
cluster
(n.). Intransitive sense from 1540s. Related:
Clustered
;
clustering
.