| CH | any of various tiny insects whose larvae are parasites on eggs and larvae of other insects |
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| CH | an arthropod family including: chalcidflies |
| CH | any of various tiny insects whose larvae are parasites on eggs and larvae of other insects |
| CH | an arthropod family including: chalcidflies |
| CH | type genus of the Chalcididae |
| CH | a variety of chalcid fly |
| CH | a heavy gray mineral that is an ore of copper |
| CH | a yellow copper ore (CuFeS2) made up of copper-iron sulfide |
| CH | thornbills |
| CH | an ancient kingdom in southern Mesopotamia |
| CH | an ancient region of Mesopotamia lying between the Euphrates delta and the Persian Gulf and the Arabian Desert |
| CH | an inhabitant of ancient Chaldea |