> as lemmas
ectoderm
ectoderm n.
Brit. 
/ˈɛktədəːm/
, /ˈɛktədəːm/U.S. /ˈɛktəˌdərm/
the outer layer of the blastoderm, also called epiblast; also, a term applied to the outer layer of the body of the Cœlenterata./ˈɛktəˌdərm/ΚΠ
1861 J. R. Greene Man. Animal Kingdom II. 11 The ectoderm growing from within outwards.
1879 tr. E. Haeckel Evol. Man I. iii. 67 The upper germ-layer, from which the outer skin and the flesh proceed, Huxley named Ecto-derm, or Outer layer.
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as lemmas
- to lean on a broken staff
- to lean on the cushion
- to lean trust to a broken staff
- to lean upon
- to leap afoot
- to leap at
- to leap bounds
- to leap from cock to ass
- to leap on
- to leap out of one's skin
- to leap out of oneself or one's skin
- to leap out of the frying pan into the fire
- to leap over the door
- to leap the pale
- to leap to be or do
- to leap to be or do something
- to leap to horse
- to leap upon
- to learn a person a thing or two
- to learn a thing or two
- to learn at one's mother's knee
- to learn by example
- to learn by heart, by rote
- to learn fashions
- to learn from example