macs

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{plural of|en|mac}}

Proper noun

1. {{lb|en|astronomy}} {{abbreviation of|en|[[massive|MAssive]] [[cluster|Cluster]] [[survey|Survey]]}} {{ng|A survey for a statistically complete sample of distant (0.7>z>0.3) very X-ray luminous massive {{l|en|clusters of galaxies||[[galaxy clusters]]}}, culled from the ROSAT Bright Source Catalogue of X-ray sources}}

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