Aber´rant (aberran(t-)s, ppr. of aberrare, stray from, < ab, from, + errare, to stray), differing in some of its characters from the group in which it is placed, said of a plant, species, genus.
Abjec´tion (abjectio(n-), act of casting away, abicere, abjicere, < ab, away, + jacere, throw), throwing off with force, as spores or seeds; expulsion.
Abjoint´ (ab, from, + junctus, adjoining), to joint off or delimit by septa or partitions.
Abnor´mal (abnormis, deviating from a fixed rule, irregular, < ab, from, + norma, a rule), not conforming to the usual type; irregular, unnatural.
Abor´tive (abortivus, born prematurely), imperfect or wanting.
Abrupt´ (abruptus, steep, disconnected, < ab, off, + rumpere, break), terminating suddenly.
Abstric´tion (abstrictus, ppr. of abstringere, < abs, from, + stringere, bind), separation of one part from another by constriction, especially of spores from their hyphæ.
Acaules´cent, Acau´line, Acau´lose, Acau´lous (caulis, a stem or stalk of a plant), having a very short stem or none; stemless.
Ac´erose (acerosus, chaffy), narrow, stiff and pointed like spruce needles; intermediate in form between acicular and subulate.
Acetab´uliform (acetabulum, a cup-shaped vessel; forma, form), cup-shaped, having the form of a shallow bowl.