| DERM | • derm n. (Anatomy) The integument of animal; the skin. • derm n. Synonym of dermis. • derm n. (Slang) Clipping of dermatologist. |
| EPIDERM | • epiderm n. (Anatomy) The epidermis. • EPIDERM n. the outermost layer of the skin, also EPIDERMIS. |
| EXODERM | • exoderm n. An outer layer of skin. • exoderm n. The outermost layer of cells in a developing embryo. • EXODERM n. the external layer of an embryo, also ECTODERM, EPIBLAST. |
| 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. |
| ENDODERM | • endoderm n. One of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce… • ENDODERM n. the innermost layer of embryo, also ENTODERM. |
| ENTODERM | • entoderm n. (Biology) Alternative form of endoderm. • ENTODERM n. the innermost layer of embryo, also ENDODERM. |
| HYPODERM | • hypoderm n. Alternative form of hypodermis. • HYPODERM n. the tissue next under the epidermis, also HYPODERMIS. |
| MESODERM | • mesoderm n. (Embryology) One of the three tissue layers in the embryo of a metazoan animal. Through embryonic development… • MESODERM n. the middle germ layer of an embryo. |
| PERIDERM | • periderm n. (Botany) The outer layer of plant tissue comprising the phellem, phellogen and the phelloderm. • periderm n. (Zoology) The perisarc; the hard outer layer of hydroids and other marine animals. • PERIDERM n. an outer layer of plant tissue. |
| OSTEODERM | • osteoderm n. (Anatomy) A bony deposit in the dermal layers of the skin. • OSTEODERM n. a bony dermal plate. |
| PACHYDERM | • pachyderm n. (Obsolete, zoology) A member of the obsolete taxonomic order Pachydermata, grouping of thick-skinned… • pachyderm n. (Informal) An elephant. • pachyderm n. (Idiomatic) A person with thick skin; someone who is not affected by or does not care what others say… |
| PLACODERM | • placoderm n. (Paleontology) A member of an extinct class (Placodermi) of jawed fish with armored heads and thoraces;… • placoderm adj. (Paleontology) Pertaining to the class Placodermi. • PLACODERM adj. covered with bony scales. |
| PROTODERM | • protoderm n. (Botany) the primary meristem from which the epidermis develops. • PROTODERM n. the dermatogen, the nascent epidermis, or external cuticle of plants in a forming condition. |
| BLASTODERM | • blastoderm n. (Embryology) The germination point in an ovum from which the embryo develops. • BLASTODERM n. the germinal membrane in an ovum, from which the embryo is developed. |
| ECHINODERM | • echinoderm n. An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including… • ECHINODERM n. one of the Echinodermata, starfishes, sand dollars, sea urchins, and sea cucumbers. |
| PHELLODERM | • phelloderm n. (Botany) The innermost parenchymatous tissue of the periderm of some plants. • PHELLODERM n. a layer of green parenchymatous cells formed on the inner side of the phellogen, the tissue of young cells which produces cork cells. |
| SCLERODERM | • scleroderm n. (Pathology) Alternative form of scleroderma. • scleroderm n. (Zoology, obsolete) One of a tribe of plectognath fishes (Sclerodermi) having the skin covered with… • scleroderm n. (Zoology, obsolete) One of the Sclerodermata; a madrepore. |
| OSTRACODERM | • ostracoderm n. (Zoology) Any of the armored jawless fishes of the Paleozoic. • OSTRACODERM n. any of the early fossil jawless fishes of the Lower Paleozoic usually having a bony covering of plates or scales. |
| CHORDAMESODERM | • chordamesoderm n. (Anatomy) The axial mesoderm, which lies along the central axis under the neural tube and gives rise to the notochord. • CHORDAMESODERM n. the layer of specialized cells in the middle of a developing embryo which forms the notochord and structures of the central nervous system. |