The word eclipses is a plural noun. The singular form is eclipse.
part of speech
The part of speech for this particular word is a noun.
There are two main types of eclipses: solar and lunar. Lunar eclipses occur every 6 months. Solar eclipses occur 2-5 times per year. Eclipses can be partial or total. Partial eclipse covers only part of the sun or moon, while total covers the full entity.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The umbra is the darkest part of the shadow, the "complete shadow" area. We typically use the word "umbra" in reference to lunar eclipses, not solar eclipses.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "lecturer" is a noun.