| ECTODERM | • ectoderm n. (Biology) Outermost of the three tissue layers in the embryo of a metazoan animal. Through development… • ECTODERM n. the external layer of an embryo, also EXODERM. |
| ECTODERMAL | • ectodermal adj. (Biology) Of or pertaining to the ectoderm. • ECTODERMAL adj. of or relating to the ectoderm, also ECTODERMIC. |
| ECTODERMIC | • ectodermic adj. (Biology) Of or relating to the ectoderm. • ECTODERMIC adj. of or relating to the ectoderm, also ECTODERMAL. |
| ECTODERMS | • ectoderms n. Plural of ectoderm. • ECTODERM n. the external layer of an embryo, also EXODERM. |
| NEUROECTODERMAL | • neuroectodermal adj. Of or pertaining to the neuroectoderm. • NEUROECTODERMAL adj. as in peripheral primitive neuroectodermal tumour, another name for Ewing's sarcoma. |
| OCTODECILLION | • octodecillion n. (US, modern British and Australian, short scale, rare) 1057. • octodecillion n. (Dated British and Australian, long scale, rare) 10108. • OCTODECILLION n. ten to the 108th power. |
| OCTODECILLIONS | • octodecillions n. Plural of octodecillion. • OCTODECILLION n. ten to the 108th power. |
| OCTODECIMO | • octodecimo n. (Paper, printing) A size of a sheet of paper resulting from folding and cutting a sheet of paper into… • octodecimo n. (Printing) A book consisting of pages of that size. • OCTODECIMO adj. having eighteen leaves to the sheet. |
| OCTODECIMOS | • octodecimos n. Plural of octodecimo. • OCTODECIMO n. a book with sheets so folded. |
| PROCTODAEA | • proctodaea n. Plural of proctodaeum. • PROCTODAEUM n. the posterior portion of the alimentary canal, also PROCTODEUM. |
| PROCTODAEAL | • proctodaeal adj. Alternative form of proctodeal. • PROCTODAEAL adj. relating to the proctodaeum, the posterior portion of the alimentary canal, esp. in insects and embryos, also PROCTODEAL. |
| PROCTODAEUM | • proctodaeum n. Alternative spelling of proctodeum. • proctodæum n. Obsolete form of proctodeum. • PROCTODAEUM n. the posterior portion of the alimentary canal, also PROCTODEUM. |
| PROCTODAEUMS | • proctodaeums n. Plural of proctodaeum. • PROCTODAEUM n. the posterior portion of the alimentary canal, also PROCTODEUM. |
| PROCTODEA | • proctodea n. Plural of proctodeum. • PROCTODEUM n. the posterior portion of the alimentary canal, also PROCTODAEUM. |
| PROCTODEAL | • proctodeal adj. Of or pertaining to the proctodeum. • PROCTODEAL adj. relating to the proctodeum, also PROCTODAEAL. |
| PROCTODEUM | • proctodeum n. The back ectodermal part of an alimentary canal. • PROCTODEUM n. the posterior portion of the alimentary canal, also PROCTODAEUM. |
| PROCTODEUMS | • proctodeums n. Plural of proctodeum. • PROCTODEUM n. the posterior portion of the alimentary canal, also PROCTODAEUM. |