nhộng trần
Definition
- Noun (Zoology):
- Nymph: The immature, non-feeding, and often inactive stage in the life cycle of some insects (especially certain beetles and bugs) that undergoes incomplete metamorphosis (hemimetabolism). In this stage, the developing insect resembles a wingless adult and is typically mobile.
- Pupa (in specific contexts): Informally, it can sometimes refer to the pupal stage of any insect, particularly when the pupa is not enclosed in a cocoon, but this usage is less precise. The more accurate general term for a pupa is "nhộng."
Usage Examples
- Noun:
- Sau khi lột xác lần cuối, rệp chuyển sang giai đoạn nhộng trần trước khi thành con trưởng thành. (After the final molt, the bug enters the nymph stage before becoming an adult.)
- Những con nhộng trần của bọ cánh cứng thường ẩn mình dưới đất. (The nymphs of beetles often hide underground.)
Advanced Usage
- The term is primarily scientific or technical. In everyday conversation, people are more likely to name the specific insect (e.g., "con bọ" - beetle, "con rệp" - bug) rather than use the general term "nhộng trần."
Variants and Related Words
- Nhộng (n): Pupa. The general term for the inactive, transformative stage of insects undergoing complete metamorphosis (holometabolism), often enclosed in a cocoon.
- Ấu trùng (n): Larva. The active, feeding, immature stage of an insect that looks very different from the adult.
- Con non (n): Juvenile or young animal; a broader, non-technical term.
Synonyms
- Nymph (primary, precise synonym in zoology).
- Immature insect (general).
Related Scientific Terms
- Biến thái không hoàn toàn (n): Incomplete metamorphosis (hemimetabolism). The life cycle that includes the egg, nymph, and adult stages.
- Lột xác (v): To molt; to shed the exoskeleton to grow, which nymphs do several times.