toàn miệng

Một con ốc toàn miệng bám trên tảng đá dưới nước.

Definition

1. Adjective (Zoology):
   • Holostome: A technical term in zoology, particularly in the classification of certain invertebrates, describing an organism that has a mouth which is entire or not divided; a complete oral aperture.

Usage Examples

• Adjective:
  • Một số loài động vật không xương sống được phân loại là toàn miệng. (Some invertebrate species are classified as holostome.)
  • Đặc điểm toàn miệng giúp phân biệt nhóm này. (The holostome characteristic helps differentiate this group.)

Advanced Usage

• This term is highly specialized and is almost exclusively used in scientific contexts, such as zoological taxonomy, morphology, or academic research papers describing anatomical features.

Variants and Related Words

• Toàn (adj): whole, entire, complete.
• Miệng (n): mouth, oral opening.

Synonyms

• Holostomatous: Having a whole or undivided mouth (an alternative technical term).

Notes on Usage

• "Toàn miệng" is a rare, scientific compound adjective. It is not used in everyday conversation. Learners are unlikely to encounter it outside of very specific zoological texts.
• The word is formed by combining the Vietnamese adjective "toàn" (whole) with the noun "miệng" (mouth) to create a precise zoological descriptor.