an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
双语例句
1. In a few cases the conceptus will be older and the dose involved may be considerable.
少数情况下，当受到的剂量可能相当大的时候，胚胎会受到影响。
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2. Delayed implantation occurs when the conceptus enters a state of suspended animation at the blastocyst stage of development.
延迟着床是指胚胎在发育到胚泡阶段时暂时进入休眠状态，并不立即着床。
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3. Delayed implantation occurs when the conceptus enters a state of suspended animation at the blastocyst stage of development.
