ham·a·dry·ad 
(hăm′ə-drīəd)
(hăm′ə-drīəd)n. pl. ham·a·dry·ads or ham·a·dry·a·des (-ə-dēz′)
1. Greek & Roman Mythology A wood nymph who lives only as long as the tree of which she is the spirit lives.
2. See king cobra.
[Middle English amadriad, from Latin Hamadryas, Hamadryad-, from Greek Hamadruas : hama, together with; see sem-1 in the Appendix of Indo-European roots + Druas, dryad (from drūs, oak; see deru- in the Appendix of Indo-European roots).]
- dissenting opinion
- dissepiment
- dissepimental
- dissert
- dissertate
- dissertation
- dissertator
- disserve
- disservice
- dissever
- disseverance
- disseverment
- dissidence
- dissident
- dissilient
- dissimilar
- dissimilarity
- dissimilarly
- dissimilate
- dissimilation
- dissimilitude
- dissimulate
- dissimulation
- dissimulative
- dissimulator