Angustatus: narrowed; narrowly drawn out.
Anisoptera: that division of the Odonata in which the hind wings are wider, especially at base, than the front wings.
Annectent: applied to connecting or intermediate forms.
Annelet or annellus: Hym.; small ring-joints between scape and funicle.
Annulate: ringed or marked with colored bands.
Annulet: a small or narrow ring or annulus.
Annuliform: in the form of rings or segments.
Annulus: a ring encircling a joint, segment, spot or mark; sometimes applied to the inner ring encircling the mouth opening.
Annulus antennalis: the ring sclerite of the head into which the basal segment of the antennae is inserted; = antennal sclerite.
Anomalous: unusual; departing widely from the usual type.