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ectosome
ectosome n.
Brit. 
/ˈɛktəsəʊm/
, /ˈɛktəsəʊm/U.S. /ˈɛktəˌsoʊm/
the outer layer of the body wall of certain sponges./ˈɛktəˌsoʊm/ΚΠ
1887 Encycl. Brit. XXII. 415/1 An outer or ectosome and an inner or choanosome.
1959 Chambers's Encycl. XIII. 101/2 The ectosome consists of a single-layered epithelium which may become several layers thick.
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as lemmas
- horse-running
- horse-rustler
- horse-sausage
- horse-seller
- horse-serum
- horse-shaft
- horse-shed
- horse-ship
- horse-shoeing
- horse-shoer
- horse-show
- horse-sickness
- horse-side
- horse-skin
- horse-slaughtering
- horse-sled
- horse-smatch
- horse-smith
- horse-soldier
- horse-sorrel
- horse-sponge
- horse-stable
- horse-steal
- horse-stealer
- horse-stealing