punctum

punctum: was mentioned in somebody's poem -- I can't seem to locate the exact source at the moment -- recently. I don't think I've ever heard it before. "A point or small area," it says below. Also, "punctum caecum, etc." as shown below. "Punctum vegetationis" has a lovely music.

Punctum vegetationis
Hereupon befalls the onus

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Punctum Punc"tum, n. [L., a point.]
A point.
[1913 Webster]

Punctum c[ae]cum. blind point.] (Anat.) Same as Blind
spot, Blind.

Punctum proximum, point. See under Point.

Punctum remotum, point. See under Point.

Punctum vegetationis point of vegetation] (Bot.), the
terminal cell of a stem, or of a leaf bud, from which new
growth originates.
[1913 Webster]

-- From The Collaborative International Dictionary of English v.0.48

punctum
n : (anatomy) a point or small area

-- From WordNet (r) 2.0