het·er·o·cyst 
(hĕtər-ə-sĭst′)
(hĕtər-ə-sĭst′)n.
A large, thick-walled, nitrogen-fixing cell that occurs at intervals along the filaments of certain cyanobacteria.
- conservatism
- conservative
- Conservative Judaism
- conservatively
- conservativeness
- conservator
- conservatorial
- conservatorship
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- considerably
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- considerateness
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- considering
- consigliere
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- consignable
- consignation