embryonal sac

embryonal sac
Embryonic Em`bry*on"ic, a. (Biol.) Of or pertaining to an embryo; embryonal; rudimentary. [1913 Webster]

{Embryonic sac} or {Embryonic vesicle} (Bot.), the vesicle within which the embryo is developed in the ovule; -- sometimes called also {amnios sac}, and {embryonal sac}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • embryonal carcinoma — n a highly malignant cancer of the testis * * * a highly malignant germ cell tumor that is a primitive form of carcinoma, probably of primitive embryonal cell derivation; it may be found either in pure form or as part of a mixed germ cell tumor… …   Medical dictionary

  • amnios sac — Embryonic Em bry*on ic, a. (Biol.) Of or pertaining to an embryo; embryonal; rudimentary. [1913 Webster] {Embryonic sac} or {Embryonic vesicle} (Bot.), the vesicle within which the embryo is developed in the ovule; sometimes called also {amnios… …   The Collaborative International Dictionary of English

  • Embryonic sac — Embryonic Em bry*on ic, a. (Biol.) Of or pertaining to an embryo; embryonal; rudimentary. [1913 Webster] {Embryonic sac} or {Embryonic vesicle} (Bot.), the vesicle within which the embryo is developed in the ovule; sometimes called also {amnios… …   The Collaborative International Dictionary of English

  • yolk sac tumor — a malignant germ cell tumor of children that represents a proliferation of both yolk sac endoderm and extraembryonic mesenchyme. It is characterized by a labyrinthine glandular pattern with a papillary projection into a sinuslike space;… …   Medical dictionary

  • infantile embryonal carcinoma — yolk sac tumor …   Medical dictionary

  • juvenile embryonal carcinoma — yolk sac tumor …   Medical dictionary

  • Embryonic — Em bry*on ic, a. (Biol.) Of or pertaining to an embryo; embryonal; rudimentary. [1913 Webster] {Embryonic sac} or {Embryonic vesicle} (Bot.), the vesicle within which the embryo is developed in the ovule; sometimes called also {amnios sac}, and… …   The Collaborative International Dictionary of English

  • Embryonic vesicle — Embryonic Em bry*on ic, a. (Biol.) Of or pertaining to an embryo; embryonal; rudimentary. [1913 Webster] {Embryonic sac} or {Embryonic vesicle} (Bot.), the vesicle within which the embryo is developed in the ovule; sometimes called also {amnios… …   The Collaborative International Dictionary of English

  • Teratoma — Classification and external resources Micrograph of a teratoma showing tissue from all three germ layers: mesoderm (immature cartilage left upper corner of image), endoderm (gastrointestinal glands cente …   Wikipedia

  • tumor — 1. Any swelling or tumefaction. 2. SYN: neoplasm. 3. One of the four signs of inflammation (t., calor, dolor, rubor) enunciated by Celsus. [L. t., a swelling] acinar cell t. a …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”