Search Result for "gestation": 
Wordnet 3.0

NOUN (3)

1. the period during which an embryo develops (about 266 days in humans);
[syn: gestation, gestation period]

2. the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus;
[syn: pregnancy, gestation, maternity]

3. the conception and development of an idea or plan;


The Collaborative International Dictionary of English v.0.48:

Gestation \Ges*ta"tion\, n. [L. gestatio a bearing, carrying, fr. gestare to bear, carry, intens. fr. gerere, gestum, to bear: cf. F. gestation. See Gest deed, Jest.] [1913 Webster] 1. The act of wearing (clothes or ornaments). [Obs.] [1913 Webster] 2. The act of carrying young in the womb from conception to delivery; pregnancy. [1913 Webster] 3. Exercise in which one is borne or carried, as on horseback, or in a carriage, without the exertion of his own powers; passive exercise. --Dunglison. [1913 Webster]
WordNet (r) 3.0 (2006):

gestation n 1: the period during which an embryo develops (about 266 days in humans) [syn: gestation, gestation period] 2: the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus [syn: pregnancy, gestation, maternity] 3: the conception and development of an idea or plan
Bouvier's Law Dictionary, Revised 6th Ed (1856):

GESTATION, med. jur. The time during which a female, who has conceived, carries the embryo or foetus in her uterus. By the common consent of mankind, the term of gestation is considered to be ten lunar months, or forty weeks, equal to nine calendar months and a week. This period has been adopted, because general observation, when it could be correctly made, has proved its correctness. Cyclop. of Pract. Med. vol. 4, p. 87, art. Succession of inheritance. But this may vary one, two, or three weeks. Co. Litt. 123 b, Harg. & Butler's, note 190*; Ryan's Med. Jurisp. 121; Coop. Med. Jur: 18; Civ. Code of Louis. art. 203-211; 1 Beck's Med. Jur. 478. See Pregnancy.