INVASION

Pronunciation (US):

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IPA (US):

 Dictionary entry overview: What does invasion mean? 

• INVASION (noun)
  The noun INVASION has 3 senses:

1. the act of invading; the act of an army that invades for conquest or plunder

2. any entry into an area not previously occupied

3. (pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body

  Familiarity information: INVASION used as a noun is uncommon.

 Dictionary entry details 

• INVASION (noun)

Sense 1

Meaning:

The act of invading; the act of an army that invades for conquest or plunder

Classified under:

Nouns denoting acts or actions

Hypernyms ("invasion" is a kind of...):

incursion; penetration (an attack that penetrates into enemy territory)

Hyponyms (each of the following is a kind of "invasion"):

inroad (an invasion or hostile attack)

Derivation:

invade (march aggressively into another's territory by military force for the purposes of conquest and occupation)

Sense 2

Meaning:

Any entry into an area not previously occupied

Classified under:

Nouns denoting natural events

Synonyms:

encroachment; intrusion; invasion

Context example:

an invasion of locusts

Hypernyms ("invasion" is a kind of...):

entering; entrance (a movement into or inward)

Derivation:

invade (to intrude upon, infringe, encroach on, violate)

invade (occupy in large numbers or live on a host)

Sense 3

Meaning:

(pathology) the spread of pathogenic microorganisms or malignant cells to new sites in the body

Classified under:

Nouns denoting natural events

Context example:

the tumor's invasion of surrounding structures

Hypernyms ("invasion" is a kind of...):

spread; spreading (process or result of distributing or extending over a wide expanse of space)

Domain category:

medical specialty; medicine (the branches of medical science that deal with nonsurgical techniques)

Derivation:

invade (penetrate or assault, in a harmful or injurious way)

 Context examples 

The prognosis is similar to that of other melanomas matched for depth of invasion.

(Balloon Cell Melanoma, NCI Thesaurus)

The withanolides in this agent may suppress nuclear factor-kappaB activation and nuclear factor-kappaB-regulated gene expression, potentiating apoptosis and inhibiting tumor cell invasion.

(Ashwagandha Root Powder Extract, NCI Thesaurus)

MET is overexpressed or mutated in many tumor cell types, and plays key roles in tumor cell proliferation, survival, invasion, and metastasis, and tumor angiogenesis.

(MET Tyrosine Kinase Inhibitor EMD 1204831, NCI Thesaurus)

Ductal carcinoma in situ of the breast with minimal stromal invasion.

(Microinvasive Breast Carcinoma, NCI Thesaurus)

Those in the mouse taxonomy are currently arbitrary, and the biologic significance of extent of invasion remains to be established.

(Microinvasive Carcinoma of the Mouse Prostate Gland, NCI Thesaurus/MMHCC)

Most cases show morphologic evidence of appendiceal wall and lymphatic vessel invasion by tumor cells.

(Appendix Enterochromaffin Cell Serotonin-Producing Neuroendocrine Tumor, NCI Thesaurus)

A malignant neoplasm arising from the glandular epithelium of the appendix with invasion of the appendiceal wall beyond the muscularis mucosa.

(Appendix Adenocarcinoma, NCI Thesaurus)

This may prevent tumor cell proliferation, invasion, migration and angiogenesis.

(Anti-TWEAK Monoclonal Antibody RO5458640, NCI Thesaurus)

The expression of the pro-angiogenic growth factor VEGF is associated with tumor angiogenesis and tumor cell proliferation and invasion.

(anti-VEGFR monoclonal antibody, NCI Thesaurus)

VEGFR2, a receptor tyrosine kinase (RTK) overexpressed by a variety of cancer cell types, belongs to the VEGFR superfamily and plays key roles in tumor cell proliferation, survival, invasion and tumor angiogenesis.

(Anti-VEGFR2-CAR Retroviral Vector-transduced Autologous T-lymphocytes, NCI Thesaurus)