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Definitions from WordNet

Definitions from the Web

Haustorium

Noun:

1. (Botany) A specialized fungal or parasitic plant structure that penetrates into the host tissue and absorbs nutrients.

Sample Sentence: The haustorium of the mistletoe plant attaches itself to the branches of the host tree to obtain water and minerals.

Noun:

2. (Zoology) An organ found in certain invertebrates, such as ticks and fleas, used for attaching to and feeding on the host animal's tissues.

Sample Sentence: The haustorium of the tick burrowed into the skin of the dog to feed on its blood.

Noun:

3. (Botany) A modified root structure in some plants, such as dodder, that attaches to a host plant and extracts nutrients directly.

Sample Sentence: The haustoria of the dodder plant twine around the stems of other plants to obtain water and nutrients.

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